#nonmonogamy — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #nonmonogamy, aggregated by home.social.
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DATE: September 12, 2026 at 06:00AM
SOURCE: PSYPOST.ORG** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
-------------------------------------------------TITLE: Having multiple partners does not compromise sexual health, large study finds
A recent study published in Journal of Social and Personal Relationships provides evidence that engaging in multiple romantic or sexual relationships does not compromise sexual health. Across two large datasets, researchers found that people in non-monogamous relationships, whether through mutual consent or secrecy, tended to report sexual functioning, satisfaction, and health outcomes that were comparable to, and in some cases slightly better than, those of people in strictly monogamous relationships.
Consensual non-monogamy involves partners mutually agreeing to allow outside romantic or sexual relationships, such as in polyamory or swinging. Infidelity, by contrast, involves engaging in outside relationships secretly and without a partner’s consent.
It is a common assumption that monogamy is inherently safer and more satisfying, but prior work paints a different picture. A study covered by PsyPost in 2016 found that more than one in five single American adults have engaged in consensual non-monogamy at some point. Following this demographic realization, research has sought to understand how these relationship structures operate. For instance, a 2015 study found that people in mutually agreed-upon open relationships were just as likely to practice safe sex and had similar rates of sexually transmitted infections compared to monogamous couples.
Expanding on that, a 2012 study indicated that people who cheat on their partners tend to be less likely to practice safer sex than those in openly non-monogamous relationships. In terms of sexual satisfaction, a 2019 study suggested that polyamorous individuals often experience higher levels of passion and eroticism with secondary partners than with their primary partners.
The current study builds on this progression by testing whether sexual functioning, desire, and the risk of sexually transmitted infections actually differ across relationship types. By strictly distinguishing between consensual non-monogamy and secret infidelity, the researchers used both targeted and large representative population datasets to answer this question.
The research was led by Michelle Larva-Ruhala, a doctoral researcher at the University of Turku’s INVEST Research Flagship Centre in Finland, who aimed to capture a comprehensive picture of how managing multiple partners influences sexual wellbeing.
“We addressed two gaps in research on [consensual non-monogamy],” Larva-Ruhala told PsyPost. “Firstly, we know from previous research that [consensually non-monogamous] relationships are similar to monogamous relationships in relationship quality and sexual satisfaction, but sexual functioning among people with multiple partners has not been studied outside the context of infidelity.”
“Second, the presumption has been that the transparent, negotiated, ‘ethical’ nature of (consensual) non-monogamy is what leads to these better outcomes and sets it apart from infidelity, which we associate with lower quality, conflict, etc.,” she continued. “So, in a nutshell, we wanted to know if having other partners had any ‘spillover effects’ into the bedroom, and whether the consensual vs. non-consensual nature of the non-monogamy had anything to do with it.”
The researchers utilized a two-study approach. In the first study, the team analyzed data from 888 adults recruited through an online survey across multiple countries, including the United States, Portugal, Italy, and Finland. Participants reported their relationship identity as either monogamous or consensually non-monogamous, which included categories like polyamory and open relationships. They also answered questions about how often their interactions with others felt like infidelity or involved keeping sexual and emotional secrets from their primary partner.
To measure sexual functioning, the survey used validated questionnaires assessing domains like desire, arousal, lubrication, and satisfaction for women, and erection, ejaculation, and satisfaction for men. Participants with multiple partners completed these measures for up to two partners. The survey also asked about participants’ history of testing for and being diagnosed with sexually transmitted infections.
The results of the first study showed that sexual functioning was largely similar between monogamous and non-monogamous individuals. However, partner-specific differences emerged. Women with multiple partners reported greater sexual desire, arousal, and satisfaction with their non-primary partners compared to their primary partners, and their scores with non-primary partners were also higher than the scores reported by single-partnered women.
These findings are in line with research covered by PsyPost in 2019, which found that polyamorous individuals report greater eroticism with secondary partners, suggesting they may diversify how their sexual needs are fulfilled across different relationships. Among men, sexual functioning did not differ by relationship type or between partners.
When looking at sexual health practices, polyamorous individuals were 3.6 times more likely to have ever been tested for a sexually transmitted infection compared to monogamous individuals. Despite this higher rate of testing and having more partners, the prevalence of sexually transmitted infection diagnoses did not differ between the two groups.
For the most part, infidelity was not linked to worse sexual functioning. There was one exception: men who reported keeping emotional attachments and sexual encounters secret from their primary partner tended to report lower sexual satisfaction in that primary relationship.
“We were surprised by the finding that infidelity was not associated with worse outcomes,” Larva-Ruhala noted. “Both studies suggest that, on average, having multiple concurrent partners isn’t necessarily tied to poorer sexual health, whether through consensual or non-consensual non-monogamy.”
The second study expanded the investigation to a population level, utilizing a pooled dataset of 10,503 participants from Finland. This dataset combined responses from genetic and behavioral research projects. Participants self-reported their relationship structure and completed broad measures of sexual wellbeing.
For women, this included overall sexual desire and functioning. For men, the researchers assessed premature ejaculatory symptoms, meaning how well they could control ejaculation. The study also measured general dyadic desire, which is the level of sexual interest a person feels toward an attractive partner.
To ensure fair comparisons between the small fraction of non-monogamous individuals and the large monogamous majority, the researchers statistically matched participants on factors like age, gender, and sociosexual orientation, a measure of how willing a person is to engage in uncommitted sex. They also controlled for whether the couples lived together and the gender of their partners.
This approach provided a unique advantage over previous work. “The method used in Study 2 is important for the current research on [consensual non-monogamy],” Larva-Ruhala explained. “Most studies… use data collected from online surveys that people in [consensually non-monogamous] relationships opt into, which is partly necessary in order to obtain a big enough pool of participants to conduct the analyses we want to do, but it also means heavy selection-bias.”
“People who are generally happy in their relationships and interested in representing their relationship configuration may be more quick to participate in these surveys,” she added. “However, study 2 used data from population-representative samples in studies not focused on [consensual non-monogamy], so we can assume people all across the board completed the survey, lowering some of that bias. It improves the generalizability of the results.”
In this population-based sample, non-monogamous men reported fewer early ejaculatory symptoms than monogamous men. Non-monogamous women reported higher global sexual desire than monogamous women. Both men and women in non-monogamous relationships reported slightly greater dyadic desire.
Again, when the researchers specifically isolated the effects of infidelity, defined here as cheating or having partners who were unaware and non-consenting, they found no effect on these sexual health outcomes. This broader lack of negative effects aligns with a major review covered by PsyPost earlier this year, which found that consensually non-monogamous individuals report levels of relationship and sexual satisfaction that are statistically indistinguishable from those of monogamous couples.
As with all research, there are a few things to keep in mind. The studies relied entirely on self-reported measures of sexual functioning and health, which can sometimes differ from objective physiological indicators or medical records. People might misremember their history of sexually transmitted infections or bias their answers to appear in a more favorable light.
Additionally, the first study grouped some participants under the broad umbrella of non-monogamy without distinguishing the specific agreements they had with their partners, such as whether they cohabitate or adhere to strict relationship hierarchies. The measure of infidelity in the second study also combined current and past cheating, meaning some participants may have reconciled with their partners long ago, potentially diluting the measurable impact of the infidelity on current sexual health. Future research could benefit from tracking couples over time to see how relationship structures and sexual health influence each other as relationship agreements evolve.
“Just because we didn’t find many differences in sexual health between those who cheat and those who practice ‘ethical’ forms of non-monogamy, doesn’t mean that doing one or the other is of no consequence,” Larva-Ruhala emphasized. “The results certainly don’t condone infidelity. They simply show that people can maintain sexual health under both versions of non-monogamy.”
To build on these findings, the research team hopes to see this work expanded. “We need replication research to validate or contradict these findings with further evidence, preferably in population-based samples from other countries,” she said.
The study, “Sexual Health in Monogamous and Non-Monogamous Relationships: Evidence From Convenience and Population-Based Samples,” was authored by Michelle A. Larva, David L. Rodrigues, Annika Gunst, Patrick Jern, Sabina Nickull, Marie-Pier Larose, Markus J. Rantala, and Justin K. Mogilski.
-------------------------------------------------
Private, vetted email list for mental health professionals: https://www.clinicians-exchange.org
Unofficial Psychology Today Xitter to toot feed at Psych Today Unofficial Bot @PTUnofficialBot
-------------------------------------------------
#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #depression #psychotherapist #SexualHealth #NonMonogamy #ConsensualNonMonogamy #OpenRelationships #Polyamory #SexualSatisfaction #SafeSex #Infidelity #RelationshipResearch #MonogamyMyth
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DATE: September 12, 2026 at 06:00AM
SOURCE: PSYPOST.ORG** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
-------------------------------------------------TITLE: Having multiple partners does not compromise sexual health, large study finds
A recent study published in Journal of Social and Personal Relationships provides evidence that engaging in multiple romantic or sexual relationships does not compromise sexual health. Across two large datasets, researchers found that people in non-monogamous relationships, whether through mutual consent or secrecy, tended to report sexual functioning, satisfaction, and health outcomes that were comparable to, and in some cases slightly better than, those of people in strictly monogamous relationships.
Consensual non-monogamy involves partners mutually agreeing to allow outside romantic or sexual relationships, such as in polyamory or swinging. Infidelity, by contrast, involves engaging in outside relationships secretly and without a partner’s consent.
It is a common assumption that monogamy is inherently safer and more satisfying, but prior work paints a different picture. A study covered by PsyPost in 2016 found that more than one in five single American adults have engaged in consensual non-monogamy at some point. Following this demographic realization, research has sought to understand how these relationship structures operate. For instance, a 2015 study found that people in mutually agreed-upon open relationships were just as likely to practice safe sex and had similar rates of sexually transmitted infections compared to monogamous couples.
Expanding on that, a 2012 study indicated that people who cheat on their partners tend to be less likely to practice safer sex than those in openly non-monogamous relationships. In terms of sexual satisfaction, a 2019 study suggested that polyamorous individuals often experience higher levels of passion and eroticism with secondary partners than with their primary partners.
The current study builds on this progression by testing whether sexual functioning, desire, and the risk of sexually transmitted infections actually differ across relationship types. By strictly distinguishing between consensual non-monogamy and secret infidelity, the researchers used both targeted and large representative population datasets to answer this question.
The research was led by Michelle Larva-Ruhala, a doctoral researcher at the University of Turku’s INVEST Research Flagship Centre in Finland, who aimed to capture a comprehensive picture of how managing multiple partners influences sexual wellbeing.
“We addressed two gaps in research on [consensual non-monogamy],” Larva-Ruhala told PsyPost. “Firstly, we know from previous research that [consensually non-monogamous] relationships are similar to monogamous relationships in relationship quality and sexual satisfaction, but sexual functioning among people with multiple partners has not been studied outside the context of infidelity.”
“Second, the presumption has been that the transparent, negotiated, ‘ethical’ nature of (consensual) non-monogamy is what leads to these better outcomes and sets it apart from infidelity, which we associate with lower quality, conflict, etc.,” she continued. “So, in a nutshell, we wanted to know if having other partners had any ‘spillover effects’ into the bedroom, and whether the consensual vs. non-consensual nature of the non-monogamy had anything to do with it.”
The researchers utilized a two-study approach. In the first study, the team analyzed data from 888 adults recruited through an online survey across multiple countries, including the United States, Portugal, Italy, and Finland. Participants reported their relationship identity as either monogamous or consensually non-monogamous, which included categories like polyamory and open relationships. They also answered questions about how often their interactions with others felt like infidelity or involved keeping sexual and emotional secrets from their primary partner.
To measure sexual functioning, the survey used validated questionnaires assessing domains like desire, arousal, lubrication, and satisfaction for women, and erection, ejaculation, and satisfaction for men. Participants with multiple partners completed these measures for up to two partners. The survey also asked about participants’ history of testing for and being diagnosed with sexually transmitted infections.
The results of the first study showed that sexual functioning was largely similar between monogamous and non-monogamous individuals. However, partner-specific differences emerged. Women with multiple partners reported greater sexual desire, arousal, and satisfaction with their non-primary partners compared to their primary partners, and their scores with non-primary partners were also higher than the scores reported by single-partnered women.
These findings are in line with research covered by PsyPost in 2019, which found that polyamorous individuals report greater eroticism with secondary partners, suggesting they may diversify how their sexual needs are fulfilled across different relationships. Among men, sexual functioning did not differ by relationship type or between partners.
When looking at sexual health practices, polyamorous individuals were 3.6 times more likely to have ever been tested for a sexually transmitted infection compared to monogamous individuals. Despite this higher rate of testing and having more partners, the prevalence of sexually transmitted infection diagnoses did not differ between the two groups.
For the most part, infidelity was not linked to worse sexual functioning. There was one exception: men who reported keeping emotional attachments and sexual encounters secret from their primary partner tended to report lower sexual satisfaction in that primary relationship.
“We were surprised by the finding that infidelity was not associated with worse outcomes,” Larva-Ruhala noted. “Both studies suggest that, on average, having multiple concurrent partners isn’t necessarily tied to poorer sexual health, whether through consensual or non-consensual non-monogamy.”
The second study expanded the investigation to a population level, utilizing a pooled dataset of 10,503 participants from Finland. This dataset combined responses from genetic and behavioral research projects. Participants self-reported their relationship structure and completed broad measures of sexual wellbeing.
For women, this included overall sexual desire and functioning. For men, the researchers assessed premature ejaculatory symptoms, meaning how well they could control ejaculation. The study also measured general dyadic desire, which is the level of sexual interest a person feels toward an attractive partner.
To ensure fair comparisons between the small fraction of non-monogamous individuals and the large monogamous majority, the researchers statistically matched participants on factors like age, gender, and sociosexual orientation, a measure of how willing a person is to engage in uncommitted sex. They also controlled for whether the couples lived together and the gender of their partners.
This approach provided a unique advantage over previous work. “The method used in Study 2 is important for the current research on [consensual non-monogamy],” Larva-Ruhala explained. “Most studies… use data collected from online surveys that people in [consensually non-monogamous] relationships opt into, which is partly necessary in order to obtain a big enough pool of participants to conduct the analyses we want to do, but it also means heavy selection-bias.”
“People who are generally happy in their relationships and interested in representing their relationship configuration may be more quick to participate in these surveys,” she added. “However, study 2 used data from population-representative samples in studies not focused on [consensual non-monogamy], so we can assume people all across the board completed the survey, lowering some of that bias. It improves the generalizability of the results.”
In this population-based sample, non-monogamous men reported fewer early ejaculatory symptoms than monogamous men. Non-monogamous women reported higher global sexual desire than monogamous women. Both men and women in non-monogamous relationships reported slightly greater dyadic desire.
Again, when the researchers specifically isolated the effects of infidelity, defined here as cheating or having partners who were unaware and non-consenting, they found no effect on these sexual health outcomes. This broader lack of negative effects aligns with a major review covered by PsyPost earlier this year, which found that consensually non-monogamous individuals report levels of relationship and sexual satisfaction that are statistically indistinguishable from those of monogamous couples.
As with all research, there are a few things to keep in mind. The studies relied entirely on self-reported measures of sexual functioning and health, which can sometimes differ from objective physiological indicators or medical records. People might misremember their history of sexually transmitted infections or bias their answers to appear in a more favorable light.
Additionally, the first study grouped some participants under the broad umbrella of non-monogamy without distinguishing the specific agreements they had with their partners, such as whether they cohabitate or adhere to strict relationship hierarchies. The measure of infidelity in the second study also combined current and past cheating, meaning some participants may have reconciled with their partners long ago, potentially diluting the measurable impact of the infidelity on current sexual health. Future research could benefit from tracking couples over time to see how relationship structures and sexual health influence each other as relationship agreements evolve.
“Just because we didn’t find many differences in sexual health between those who cheat and those who practice ‘ethical’ forms of non-monogamy, doesn’t mean that doing one or the other is of no consequence,” Larva-Ruhala emphasized. “The results certainly don’t condone infidelity. They simply show that people can maintain sexual health under both versions of non-monogamy.”
To build on these findings, the research team hopes to see this work expanded. “We need replication research to validate or contradict these findings with further evidence, preferably in population-based samples from other countries,” she said.
The study, “Sexual Health in Monogamous and Non-Monogamous Relationships: Evidence From Convenience and Population-Based Samples,” was authored by Michelle A. Larva, David L. Rodrigues, Annika Gunst, Patrick Jern, Sabina Nickull, Marie-Pier Larose, Markus J. Rantala, and Justin K. Mogilski.
-------------------------------------------------
Private, vetted email list for mental health professionals: https://www.clinicians-exchange.org
Unofficial Psychology Today Xitter to toot feed at Psych Today Unofficial Bot @PTUnofficialBot
-------------------------------------------------
#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #depression #psychotherapist #SexualHealth #NonMonogamy #ConsensualNonMonogamy #OpenRelationships #Polyamory #SexualSatisfaction #SafeSex #Infidelity #RelationshipResearch #MonogamyMyth
-
DATE: September 12, 2026 at 06:00AM
SOURCE: PSYPOST.ORG** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
-------------------------------------------------TITLE: Having multiple partners does not compromise sexual health, large study finds
A recent study published in Journal of Social and Personal Relationships provides evidence that engaging in multiple romantic or sexual relationships does not compromise sexual health. Across two large datasets, researchers found that people in non-monogamous relationships, whether through mutual consent or secrecy, tended to report sexual functioning, satisfaction, and health outcomes that were comparable to, and in some cases slightly better than, those of people in strictly monogamous relationships.
Consensual non-monogamy involves partners mutually agreeing to allow outside romantic or sexual relationships, such as in polyamory or swinging. Infidelity, by contrast, involves engaging in outside relationships secretly and without a partner’s consent.
It is a common assumption that monogamy is inherently safer and more satisfying, but prior work paints a different picture. A study covered by PsyPost in 2016 found that more than one in five single American adults have engaged in consensual non-monogamy at some point. Following this demographic realization, research has sought to understand how these relationship structures operate. For instance, a 2015 study found that people in mutually agreed-upon open relationships were just as likely to practice safe sex and had similar rates of sexually transmitted infections compared to monogamous couples.
Expanding on that, a 2012 study indicated that people who cheat on their partners tend to be less likely to practice safer sex than those in openly non-monogamous relationships. In terms of sexual satisfaction, a 2019 study suggested that polyamorous individuals often experience higher levels of passion and eroticism with secondary partners than with their primary partners.
The current study builds on this progression by testing whether sexual functioning, desire, and the risk of sexually transmitted infections actually differ across relationship types. By strictly distinguishing between consensual non-monogamy and secret infidelity, the researchers used both targeted and large representative population datasets to answer this question.
The research was led by Michelle Larva-Ruhala, a doctoral researcher at the University of Turku’s INVEST Research Flagship Centre in Finland, who aimed to capture a comprehensive picture of how managing multiple partners influences sexual wellbeing.
“We addressed two gaps in research on [consensual non-monogamy],” Larva-Ruhala told PsyPost. “Firstly, we know from previous research that [consensually non-monogamous] relationships are similar to monogamous relationships in relationship quality and sexual satisfaction, but sexual functioning among people with multiple partners has not been studied outside the context of infidelity.”
“Second, the presumption has been that the transparent, negotiated, ‘ethical’ nature of (consensual) non-monogamy is what leads to these better outcomes and sets it apart from infidelity, which we associate with lower quality, conflict, etc.,” she continued. “So, in a nutshell, we wanted to know if having other partners had any ‘spillover effects’ into the bedroom, and whether the consensual vs. non-consensual nature of the non-monogamy had anything to do with it.”
The researchers utilized a two-study approach. In the first study, the team analyzed data from 888 adults recruited through an online survey across multiple countries, including the United States, Portugal, Italy, and Finland. Participants reported their relationship identity as either monogamous or consensually non-monogamous, which included categories like polyamory and open relationships. They also answered questions about how often their interactions with others felt like infidelity or involved keeping sexual and emotional secrets from their primary partner.
To measure sexual functioning, the survey used validated questionnaires assessing domains like desire, arousal, lubrication, and satisfaction for women, and erection, ejaculation, and satisfaction for men. Participants with multiple partners completed these measures for up to two partners. The survey also asked about participants’ history of testing for and being diagnosed with sexually transmitted infections.
The results of the first study showed that sexual functioning was largely similar between monogamous and non-monogamous individuals. However, partner-specific differences emerged. Women with multiple partners reported greater sexual desire, arousal, and satisfaction with their non-primary partners compared to their primary partners, and their scores with non-primary partners were also higher than the scores reported by single-partnered women.
These findings are in line with research covered by PsyPost in 2019, which found that polyamorous individuals report greater eroticism with secondary partners, suggesting they may diversify how their sexual needs are fulfilled across different relationships. Among men, sexual functioning did not differ by relationship type or between partners.
When looking at sexual health practices, polyamorous individuals were 3.6 times more likely to have ever been tested for a sexually transmitted infection compared to monogamous individuals. Despite this higher rate of testing and having more partners, the prevalence of sexually transmitted infection diagnoses did not differ between the two groups.
For the most part, infidelity was not linked to worse sexual functioning. There was one exception: men who reported keeping emotional attachments and sexual encounters secret from their primary partner tended to report lower sexual satisfaction in that primary relationship.
“We were surprised by the finding that infidelity was not associated with worse outcomes,” Larva-Ruhala noted. “Both studies suggest that, on average, having multiple concurrent partners isn’t necessarily tied to poorer sexual health, whether through consensual or non-consensual non-monogamy.”
The second study expanded the investigation to a population level, utilizing a pooled dataset of 10,503 participants from Finland. This dataset combined responses from genetic and behavioral research projects. Participants self-reported their relationship structure and completed broad measures of sexual wellbeing.
For women, this included overall sexual desire and functioning. For men, the researchers assessed premature ejaculatory symptoms, meaning how well they could control ejaculation. The study also measured general dyadic desire, which is the level of sexual interest a person feels toward an attractive partner.
To ensure fair comparisons between the small fraction of non-monogamous individuals and the large monogamous majority, the researchers statistically matched participants on factors like age, gender, and sociosexual orientation, a measure of how willing a person is to engage in uncommitted sex. They also controlled for whether the couples lived together and the gender of their partners.
This approach provided a unique advantage over previous work. “The method used in Study 2 is important for the current research on [consensual non-monogamy],” Larva-Ruhala explained. “Most studies… use data collected from online surveys that people in [consensually non-monogamous] relationships opt into, which is partly necessary in order to obtain a big enough pool of participants to conduct the analyses we want to do, but it also means heavy selection-bias.”
“People who are generally happy in their relationships and interested in representing their relationship configuration may be more quick to participate in these surveys,” she added. “However, study 2 used data from population-representative samples in studies not focused on [consensual non-monogamy], so we can assume people all across the board completed the survey, lowering some of that bias. It improves the generalizability of the results.”
In this population-based sample, non-monogamous men reported fewer early ejaculatory symptoms than monogamous men. Non-monogamous women reported higher global sexual desire than monogamous women. Both men and women in non-monogamous relationships reported slightly greater dyadic desire.
Again, when the researchers specifically isolated the effects of infidelity, defined here as cheating or having partners who were unaware and non-consenting, they found no effect on these sexual health outcomes. This broader lack of negative effects aligns with a major review covered by PsyPost earlier this year, which found that consensually non-monogamous individuals report levels of relationship and sexual satisfaction that are statistically indistinguishable from those of monogamous couples.
As with all research, there are a few things to keep in mind. The studies relied entirely on self-reported measures of sexual functioning and health, which can sometimes differ from objective physiological indicators or medical records. People might misremember their history of sexually transmitted infections or bias their answers to appear in a more favorable light.
Additionally, the first study grouped some participants under the broad umbrella of non-monogamy without distinguishing the specific agreements they had with their partners, such as whether they cohabitate or adhere to strict relationship hierarchies. The measure of infidelity in the second study also combined current and past cheating, meaning some participants may have reconciled with their partners long ago, potentially diluting the measurable impact of the infidelity on current sexual health. Future research could benefit from tracking couples over time to see how relationship structures and sexual health influence each other as relationship agreements evolve.
“Just because we didn’t find many differences in sexual health between those who cheat and those who practice ‘ethical’ forms of non-monogamy, doesn’t mean that doing one or the other is of no consequence,” Larva-Ruhala emphasized. “The results certainly don’t condone infidelity. They simply show that people can maintain sexual health under both versions of non-monogamy.”
To build on these findings, the research team hopes to see this work expanded. “We need replication research to validate or contradict these findings with further evidence, preferably in population-based samples from other countries,” she said.
The study, “Sexual Health in Monogamous and Non-Monogamous Relationships: Evidence From Convenience and Population-Based Samples,” was authored by Michelle A. Larva, David L. Rodrigues, Annika Gunst, Patrick Jern, Sabina Nickull, Marie-Pier Larose, Markus J. Rantala, and Justin K. Mogilski.
-------------------------------------------------
Private, vetted email list for mental health professionals: https://www.clinicians-exchange.org
Unofficial Psychology Today Xitter to toot feed at Psych Today Unofficial Bot @PTUnofficialBot
-------------------------------------------------
#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #depression #psychotherapist #SexualHealth #NonMonogamy #ConsensualNonMonogamy #OpenRelationships #Polyamory #SexualSatisfaction #SafeSex #Infidelity #RelationshipResearch #MonogamyMyth
-
DATE: September 12, 2026 at 06:00AM
SOURCE: PSYPOST.ORG** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
-------------------------------------------------TITLE: Having multiple partners does not compromise sexual health, large study finds
A recent study published in Journal of Social and Personal Relationships provides evidence that engaging in multiple romantic or sexual relationships does not compromise sexual health. Across two large datasets, researchers found that people in non-monogamous relationships, whether through mutual consent or secrecy, tended to report sexual functioning, satisfaction, and health outcomes that were comparable to, and in some cases slightly better than, those of people in strictly monogamous relationships.
Consensual non-monogamy involves partners mutually agreeing to allow outside romantic or sexual relationships, such as in polyamory or swinging. Infidelity, by contrast, involves engaging in outside relationships secretly and without a partner’s consent.
It is a common assumption that monogamy is inherently safer and more satisfying, but prior work paints a different picture. A study covered by PsyPost in 2016 found that more than one in five single American adults have engaged in consensual non-monogamy at some point. Following this demographic realization, research has sought to understand how these relationship structures operate. For instance, a 2015 study found that people in mutually agreed-upon open relationships were just as likely to practice safe sex and had similar rates of sexually transmitted infections compared to monogamous couples.
Expanding on that, a 2012 study indicated that people who cheat on their partners tend to be less likely to practice safer sex than those in openly non-monogamous relationships. In terms of sexual satisfaction, a 2019 study suggested that polyamorous individuals often experience higher levels of passion and eroticism with secondary partners than with their primary partners.
The current study builds on this progression by testing whether sexual functioning, desire, and the risk of sexually transmitted infections actually differ across relationship types. By strictly distinguishing between consensual non-monogamy and secret infidelity, the researchers used both targeted and large representative population datasets to answer this question.
The research was led by Michelle Larva-Ruhala, a doctoral researcher at the University of Turku’s INVEST Research Flagship Centre in Finland, who aimed to capture a comprehensive picture of how managing multiple partners influences sexual wellbeing.
“We addressed two gaps in research on [consensual non-monogamy],” Larva-Ruhala told PsyPost. “Firstly, we know from previous research that [consensually non-monogamous] relationships are similar to monogamous relationships in relationship quality and sexual satisfaction, but sexual functioning among people with multiple partners has not been studied outside the context of infidelity.”
“Second, the presumption has been that the transparent, negotiated, ‘ethical’ nature of (consensual) non-monogamy is what leads to these better outcomes and sets it apart from infidelity, which we associate with lower quality, conflict, etc.,” she continued. “So, in a nutshell, we wanted to know if having other partners had any ‘spillover effects’ into the bedroom, and whether the consensual vs. non-consensual nature of the non-monogamy had anything to do with it.”
The researchers utilized a two-study approach. In the first study, the team analyzed data from 888 adults recruited through an online survey across multiple countries, including the United States, Portugal, Italy, and Finland. Participants reported their relationship identity as either monogamous or consensually non-monogamous, which included categories like polyamory and open relationships. They also answered questions about how often their interactions with others felt like infidelity or involved keeping sexual and emotional secrets from their primary partner.
To measure sexual functioning, the survey used validated questionnaires assessing domains like desire, arousal, lubrication, and satisfaction for women, and erection, ejaculation, and satisfaction for men. Participants with multiple partners completed these measures for up to two partners. The survey also asked about participants’ history of testing for and being diagnosed with sexually transmitted infections.
The results of the first study showed that sexual functioning was largely similar between monogamous and non-monogamous individuals. However, partner-specific differences emerged. Women with multiple partners reported greater sexual desire, arousal, and satisfaction with their non-primary partners compared to their primary partners, and their scores with non-primary partners were also higher than the scores reported by single-partnered women.
These findings are in line with research covered by PsyPost in 2019, which found that polyamorous individuals report greater eroticism with secondary partners, suggesting they may diversify how their sexual needs are fulfilled across different relationships. Among men, sexual functioning did not differ by relationship type or between partners.
When looking at sexual health practices, polyamorous individuals were 3.6 times more likely to have ever been tested for a sexually transmitted infection compared to monogamous individuals. Despite this higher rate of testing and having more partners, the prevalence of sexually transmitted infection diagnoses did not differ between the two groups.
For the most part, infidelity was not linked to worse sexual functioning. There was one exception: men who reported keeping emotional attachments and sexual encounters secret from their primary partner tended to report lower sexual satisfaction in that primary relationship.
“We were surprised by the finding that infidelity was not associated with worse outcomes,” Larva-Ruhala noted. “Both studies suggest that, on average, having multiple concurrent partners isn’t necessarily tied to poorer sexual health, whether through consensual or non-consensual non-monogamy.”
The second study expanded the investigation to a population level, utilizing a pooled dataset of 10,503 participants from Finland. This dataset combined responses from genetic and behavioral research projects. Participants self-reported their relationship structure and completed broad measures of sexual wellbeing.
For women, this included overall sexual desire and functioning. For men, the researchers assessed premature ejaculatory symptoms, meaning how well they could control ejaculation. The study also measured general dyadic desire, which is the level of sexual interest a person feels toward an attractive partner.
To ensure fair comparisons between the small fraction of non-monogamous individuals and the large monogamous majority, the researchers statistically matched participants on factors like age, gender, and sociosexual orientation, a measure of how willing a person is to engage in uncommitted sex. They also controlled for whether the couples lived together and the gender of their partners.
This approach provided a unique advantage over previous work. “The method used in Study 2 is important for the current research on [consensual non-monogamy],” Larva-Ruhala explained. “Most studies… use data collected from online surveys that people in [consensually non-monogamous] relationships opt into, which is partly necessary in order to obtain a big enough pool of participants to conduct the analyses we want to do, but it also means heavy selection-bias.”
“People who are generally happy in their relationships and interested in representing their relationship configuration may be more quick to participate in these surveys,” she added. “However, study 2 used data from population-representative samples in studies not focused on [consensual non-monogamy], so we can assume people all across the board completed the survey, lowering some of that bias. It improves the generalizability of the results.”
In this population-based sample, non-monogamous men reported fewer early ejaculatory symptoms than monogamous men. Non-monogamous women reported higher global sexual desire than monogamous women. Both men and women in non-monogamous relationships reported slightly greater dyadic desire.
Again, when the researchers specifically isolated the effects of infidelity, defined here as cheating or having partners who were unaware and non-consenting, they found no effect on these sexual health outcomes. This broader lack of negative effects aligns with a major review covered by PsyPost earlier this year, which found that consensually non-monogamous individuals report levels of relationship and sexual satisfaction that are statistically indistinguishable from those of monogamous couples.
As with all research, there are a few things to keep in mind. The studies relied entirely on self-reported measures of sexual functioning and health, which can sometimes differ from objective physiological indicators or medical records. People might misremember their history of sexually transmitted infections or bias their answers to appear in a more favorable light.
Additionally, the first study grouped some participants under the broad umbrella of non-monogamy without distinguishing the specific agreements they had with their partners, such as whether they cohabitate or adhere to strict relationship hierarchies. The measure of infidelity in the second study also combined current and past cheating, meaning some participants may have reconciled with their partners long ago, potentially diluting the measurable impact of the infidelity on current sexual health. Future research could benefit from tracking couples over time to see how relationship structures and sexual health influence each other as relationship agreements evolve.
“Just because we didn’t find many differences in sexual health between those who cheat and those who practice ‘ethical’ forms of non-monogamy, doesn’t mean that doing one or the other is of no consequence,” Larva-Ruhala emphasized. “The results certainly don’t condone infidelity. They simply show that people can maintain sexual health under both versions of non-monogamy.”
To build on these findings, the research team hopes to see this work expanded. “We need replication research to validate or contradict these findings with further evidence, preferably in population-based samples from other countries,” she said.
The study, “Sexual Health in Monogamous and Non-Monogamous Relationships: Evidence From Convenience and Population-Based Samples,” was authored by Michelle A. Larva, David L. Rodrigues, Annika Gunst, Patrick Jern, Sabina Nickull, Marie-Pier Larose, Markus J. Rantala, and Justin K. Mogilski.
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#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #depression #psychotherapist #SexualHealth #NonMonogamy #ConsensualNonMonogamy #OpenRelationships #Polyamory #SexualSatisfaction #SafeSex #Infidelity #RelationshipResearch #MonogamyMyth
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Old Brompton Cemetery..
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DAY 8
We dropped Lucy at the station in the morning so she could catch the train into her course, and then popped to Tesco to pick up snacks for everyone for movie night. Lucy was going to spend the night at her other husband's place, so we'll get the house to ourselves..although the plan was for us to head over to his place for movie night too.
After picking up snacks (and ingredients to make keto snacks for Lucy), we were going to wander around TKMaxx to find slippers for me and then go get a bubble tea, but Tesco was too loud and my back was too sore, so we just came home.
We had some lunch, and then did housework. I cleaned the kitchen while Greg vaccuumed and did the bathrooms. Then we spent some time chatting and watching TV.. and I mentioned how I didn't want to go for movie night, and that I didn't know if it was just my agoraphobia starting to kick up.
Greg was really supportive, and said that it was ok for us not to go. We decided that was best, and popped the snacks in the car to drop them off for everyone after dinner (lentil pasta sauce, which is one of my really good recipes), and then came back home. The plan was to fool around some before bed, but we were both tired so we just snuggled up and slept.
Squirrel sightings: still 0, damn it
Fox sightings: 6Post-flight covid test: still negative
#relationship #LongDistance #LongDistanceRelationship #NonMonogamy #uk2024 #Cats #CatsOfMastodon #KittensOfMastodon #Kitten #Kittens #caturday
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DAY 7
During the covid lockdowns Greg and Lucy started a Friday night routine of watching a film with their friend Glen joining them via video call from his home. Sometimes Lucy's other husband would also join in, sometimes I would get up at 4am and also join via a call from Australia. It became our International Non-Monogamous Movie night, and has been something we've all done for the last 3 years or so. It's fun when I'm visiting, because we get to do it in person, complete with pizza, drinking, an often bad horror movie, and running commentary from us all.
However, because Lucy had so much on today with her course and work prep, we shifted it to Saturday night and Greg, Lucy and I watched Umma together instead.. with pizza, drinking, and commentary - so it wasn't that different tbh.
I ordered a magherta pizza which was quite lovely. The best part was the dough, which had a lovely soft chewiness to it. We tried to make mint julep with mint essence instead of fresh herbs, and ended up switching to gin, tonic, and rose water because the mint juleps were like being slapped in the face by a mouthwash soaked towel.
The movie was disappointing. Sandra Oh was an absolute power in the lead role, but the story let her down. She deserved a much better script.
We went to bed and snuggled after the movie. We slept with the blind open so I could wake up with the light, which seems to be slowly sorting out my jet lag.
Squirrel sightings: still 0
Fox sightings: 4Post-flight covid test: final test, still negative - vaccination works!
#relationship #LongDistance #LongDistanceRelationship #NonMonogamy #UK2024
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DAY 6
Greg was working, so I spent the day sitting on the fold out sofa in the study, which is where we've been sleeping as well. I read (Leave the World Behind by Rumaan Alam), watched tiktoks, and played on my Switch (A Little to the Left), encouraging him to take a break every hour where I played with his junk while he decompressed about how work was going and we chatted and joked. It was a really cozy day.
His wife (let's call her Lucy), was downstairs in her office area all day, prepping for her course and work. She's doing a relationship counselling course which has a three day in person component over the weekend, and has a lot of study to do to get ready for that, as well her job being one that involves a LOT of take-home (unpaid) work.
At one point she said "please don't feel like you have to hide away upstairs.. feel free to come down here and use the lounge room if you want to watch TV or play games.." (her office area is part of the loungeroom sectioned off).
I think I'm still in the clingy part of my visit. I explained that it was a novelty to just look up from my book and see Greg sitting in the same room, instead of being on a screen. Lucy has had a long distance relationship, so she understands.
We all had some dinner (chicken fajitas) and watched some TV together. I went to bed early because I was exhausted by 8pm.. jet lag is still kicking my arse. I felt Greg climb into bed around 11pm, because he'd fallen asleep on the sofa.
Squirrel sightings: 0, but Greg told me he saw one on Wednesday.. so there are some still around
Fox sightings: 7 - big fox day!Post-flight covid test: negative, but my best friendessaged me to let me know he tested positive
#relationship #LongDistance #LongDistanceRelationship #NonMonogamy #UK2024
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DAY 5
I tested negative for covid again, which meant that we got to go to Greg's place.
I woke up with a hypo and felt awful. I'm having to adjust my insulin dosage because of having a different schedule here. I've already dropped it by 20 units, but I think I'm going to have to drop it further. I went back to bed for a nap that ended up being a couple of hours, Greg let me sleep while he packed up most of our stuff.
I woke up about an hour before we were leaving, packed up my things, and it was time to go.
I'm super thankful to Greg's wife's other husband for letting us take over his flat and quarantine for the first few days of my visit.. but it's so nice to be back in Greg's place, and I've missed hanging out with his wife.
We got back and settled, had some lunch (a sandwich), and then went to pick up his wife from work. We stopped at Lidl on the way home, and then Greg and I prepped dinner while his wife had a therapy call.
After dinner (steak and salad), I got birthday presents and we had a bottle of champagne together.. we watched an episode of HullRaisers and went to bed.
I love these people so much.
Squirrel sightings: 0
Fox sightings: 4 finally!Post-flight covid test: still negative
#relationship #LongDistance #LongDistanceRelationship #NonMonogamy #UK2024
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DAY 4
We don't have the car, because Greg's wife and her other husband have it so he can drop her at work.. so we spent the day inside again.
I'm not feeling great, because my back is sore and my hip feels wrong. I think it's the soft bed here, Greg has mentioned that his back is a little sore as well.
We just spent the day chatting and watching some TV in the breaks between him working. We've started watching Inside Man, which I've already seen and he's enjoying. We had sandwiches for lunch, and a poor-man chicken parm for dinner.
I feel strangely home sick? But on reflection I think I'm just missing my bed and being able to relax my body properly.
Squirrel sightings: 0
Fox sightings: 0Post-flight covid test: negative
#relationship #LongDistance #LongDistanceRelationship #NonMonogamy #UK2024
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DAY 3
We spent the day at home. Greg had to work, and I had a headache all day. My back is still out of place from the flight, and I think that's making my neck very tense and giving me a headache.
In his work breaks (I try to prompt him to have a 10 minute break every hour, especially when he's working with big sets of data), we watched some TV and chatted.
I've been listening to a podcast by some of the women who work at DropOut, called Erotic Book Club. They read a different erotic book or story each week, and have a couple of guests on to talk about it. The books are bad, the conversation is great!
The episode I listened to today, they had read a book called Phantom Liaison. It contained a chapter where a phantom watches two people having sex, and the podcast then debated if that constituted a "threesome or cuckold".. the debate was hilarious, and led to me positing the same query to Greg. We spent the rest of the day throwing out different hypothetical situations and asking each other whether it's a threesome, and why. It's been fun and funny, and the conversation has just flowed.
I like that about us. We chat really easily.. always have, right from our first phone call that started with us both stating how much we hate phone calls, how it would probably be a really short call but that the length didn't mean anything about how we felt for each other.
We spoke for almost 3 hours that time.
Squirrel sightings: still 0
Fox sightings: still 0Post-flight covid test: still negative
#relationship #LongDistance #LongDistanceRelationship #NonMonogamy #UK2024
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DAY 2
We took a trip to Costco, to buy some things in for my visit and to just get out of the house.
I always get anxious when Greg drives here, the roads in Bathurst are super wide and because it's a regional area cars mostly stay back from each other. Here it seems like everyone is tailgating and there are a lot of small differences in the road rules that put me in edge to watch him navigate. He's a good driver, I just find that difficult to remember.
I was going to have a Costco hot dog for lunch (I absolutely love them! And they're different in the UK), but the lines were too much to deal with and we just wanted to come home. On the way we stopped at Sainsbury's to pick up some things for Greg's wife, then he dropped me at the flat and dropped the groceries to her.. the shuffled the car and dropped Greg back here. Then we sorted out lunch (tuna and salad - it was great to eat a salad after flying!), showered, and just hung out for a while. Greg played Moss on the Quest2 while I read and watched him.
Sometimes I just spend time looking at him, because of the novelty of being in the same space again.
We watched some TV. I introduced him to Fargo, and he's enjoying it.. unfortunately it's not a great re-watch, which surprises me.
We headed to be around 10.30pm, and played... there was some edging and a ruined orgasm, and a lot of laughter. I think one of my favourite things about us is how much we laugh during sex.. I've never really gotten to do that with other partners because they assume they're being laughed at, and not laughed with.
We fell asleep listening to the wind.
Squirrel sightings: 0
Fox sightings: 0Post-flight covid test: still negative
#relationship #LongDistance #LongDistanceRelationship #NonMonogamy #UK2024
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DAY 1
I woke up around 4am, and we messed around a little.
Greg's been helping test an app that tracks edging sessions, and about a week before I left he mentioned that he was up to 999 edges since his last orgasm. We decided it would be nice to have his 1000th edge together, so when we've been playing we've been "edging edging".. which means he stops before he even gets to an edge, and the idea is to just stay aroused but not really let it go anywhere.
With that in mind, I gave him a long session of really intense oral. We've talked before about how one of my favourite things to do with someone is just give really long slow sessions of oral and tease them for extended periods. Usually I'll have someone bound so they can't push into it or wiggle away, and I get to set the pace of everything and just play with them. Greg and I haven't really done that before, but over the last year or so we've been experimenting with over stimulation for him.. so we got to play around with that a little. I had so much fun, and he mentioned later about how surprised he always is by how much I enjoy just giving blow jobs (hi, service sub.. so, yes!). This was the play session where he gave me those amazing compliments and made those hilarious squeaking noises.
After a while we stopped and slept for a couple more hours before getting up for the day.
We ate breakfast and talked about what we were going to do. We decided to take a trip to Tesco to pick up a few more things we needed.
I enjoy wandering around supermarkets in other countries because I find the little differences in things quite fascinating. I saw gravy sold in a can like soda or beer is at home.
We got home and had lunch (cheese toasties, and ordered in a bubble tea), and watched a couple of episodes of All Creatures Great and Small. I'd watched the couple of seasons on the plane, and Greg has jumped in watching part way through. We're both really enjoying it.
I had a bit of a nap in the afternoon, snuggled up to him while he told me a story and played with my hair. Then we had some dinner (chili over the left over chips from the night before), watched some more TV, and went to bed around 10pm.
Squirrel count: 0
Fox count: 0Post-flight covid test: negative
#relationship #LongDistance #LongDistanceRelationship #NonMonogamy #UK2024
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DAY 0
I landed around 1.30pm (UK time), and Greg met me at the airport. He messaged me before I through customs to let me know what baggage carousel my luggage would be at and that he was feeling teary and might cry when he saw me.
I grabbed my bags, and met him at the exit gate.. and he immediately took my bags and lead me outside to the car and away from the crowds of people, which was exactly what I needed in that moment. I was tossing up whether to ask if we could stop at a store to buy a drink, and he mentioned that he had different drinks and snacks in the car for me.
We drove back to where we're staying - Greg's wife's other husband's flat. We're not going back to Greg's at the moment because if I have picked up covid during travel we don't want to give it to anyone else.. so we're quarantining for a few days.
When we arrived I got my birthday present (yay!) and cards. He always gets a joke card for me and then a serious one. The joke card had a big "50" on the front when I pulled it out of the envelope, which was actually weirdly confronting to see. I thought I was fine about turning 50, but apparently there's part of my brain that's not happy about it. I got a shower, we had dinner (ordered in fish and chips) and watched some TV, and then went to bed.
#relationship #LongDistance #LongDistanceRelationship #NonMonogamy #UK2024