Sociosexuality, Commitment, and Sexual Desire for an Attractive Person

The Rise of Bisexuality: U.S. Representative Data Show an Increase Over Time in Bisexual Identity and Persons Reporting Sex with Both Women and Men

Recognizing that social forces shape sexual behavior and sexual identities, we examined whether the recent liberalization in attitudes toward same-sex relationships has been accompanied by changes in sexual orientation as indicated by sexual behavior and sexual orientation identity. Using nationally representative data from the General Social Survey (n = 34,524), we compared reported patterns of sexual behavior of respondents from 1989 through 2021. Among the 2012-2018 waves (n = 7144, weighted), we compared patterns of sexual orientation, as indicated by behavior and identity, among different demographic groups. We also examined how sexual behavior varied among respondents with different sexual orientations. Results showed an increase in respondents reporting both male and female partners over time, with 3.1% of respondents reporting both male and female partners since age 18 among the 1989-1994 waves, 9.3% reporting this in the 2012-2018 waves, and 9.6% reporting this in the 2021 sample. Identifying as bisexual was more common among women (3.7%) than men (1.6%) and among younger persons than older persons. Over 6% of 18-29 year-olds but fewer than 2% of respondents over age 40 identified as bisexual. Findings demonstrate that sexual norms and behaviors have changed and that far more persons today than in earlier years identify as bisexual and/or have both male and female partners.

Psychometric Characteristics of the Italian Version of the Revised Sociosexual Orientation Inventory

Sociosexuality refers to the tendency to engage in uncommitted sexual behavior and has been dissected into three domains: sociosexual behavior, attitudes, and desire (Penke & Asendorpf, 2008), which led to the revised Sociosexual Orientation Inventory (SOI-R), which was validated on a German sample. The current research aimed at translating and validating an Italian version (I-SOI-R), administered to three distinct Italian participant groups. In the first sample (N = 710, females = 521, age = 18-59 years), we found evidence for a bifactor model, articulated in a general sociosexuality factor and three specific factors (behavior, attitudes, desire). High internal consistency was established for total and subscale scores, alongside favorable test-retest reliability. A connection was found between relationship status and sociosexual desire, though not gender dependent. We found evidence for test-retest reliability in a second sample (N = 55, females = 37, age 20-58 years). In a third study (N = 305, females = 147, age = 19-60 years), the earlier findings were replicated, further confirming the I-SOI-R's construct, criterion, and nomological validity on an online sample. Combining data from the three studies revealed full configural, metric, and scalar invariance regarding gender. This allowed us to meaningfully compare the observed scores of women and men and replicated the finding that men display higher levels of unrestricted sociosexuality. In conclusion, the I-SOI-R may serve as a valuable tool to assess and enhance sexual health, albeit warranting future research on construct and criterion validity.

A Narrative Review of the Dichotomy Between the Social Views of Non-Monogamy and the Experiences of Consensual Non-Monogamous People

Monogamy is deeply rooted in most Western societies, shaping how people construe and behave in romantic relationships. These normative views facilitate the emergence of negative perceptions and evaluations when people choose not to adhere to mononormativity. Even though people in consensual non-monogamous (CNM) relationships are targets of stigmatization, research shows a dichotomy between these negative views and the relational experiences of CNM people. Indeed, people in CNM and monogamous relationships have comparable relationship functioning and quality and struggle with similar relationship problems. One of the differences is that CNM relationships afford people to explore their sexuality and fulfill their needs with multiple partners, without agreed-upon extradyadic behavior being perceived as infidelity or having deleterious consequences to relationship maintenance. These positive experiences notwithstanding, CNM people are continuously pressured by mononormativity and stigmatization, increasing the risk of internalized CNM negativity and worse personal and relational outcomes. One possible way to counteract CNM stigmatization and improve the lives of CNM people is by changing discourses surrounding non-monogamy and improving acceptance, not only in professional settings but also in the general population. Another strategy is to understand how the relationship beliefs and scripts of younger generations can help promote more inclusive and diverse societies.

Reliability and Validity of the Colombian Version of the Revised Sociosexual Orientation Inventory

Sociosexuality refers to an individual's disposition to have casual sex without establishing affective bonds and has been widely studied worldwide using the Revised Sociosexual Orientation Inventory (SOI-R; Penke & Asendorpf, 2008). Despite its many validations in different cultural contexts, no psychometric analyses of this instrument have been conducted in Spanish-speaking Latin American countries. To address this gap in the literature, we examined the psychometric properties of the SOI-R in Colombia. In a cross-sectional study with a large sample of participants (N = 812; 64% women), we conducted exploratory and confirmatory factor analyses to identify different factor structures and determine which had the best fit for our sample and examined the reliability of the scale. Results showed that a three-factor structure, with sociosexual behaviors, attitudes, and desire as first-order factors, and global sociosexuality as a second-order factor, had the best fit indexes. Each factor presented good reliability indexes. Replicating already established gender differences, we also found that men scored higher on each factor when compared to women. These findings show that the SOI-R is a reliable and valid instrument to assess sociosexuality in countries where sociosexuality research is underrepresented.

The Webs We Weave: Predicting Infidelity Motivations and Extradyadic Relationship Satisfaction

The current study examined relationships between sociosexual constructs and motivations for infidelity in a currently cheating sample. Members of the AshleyMadison.com website who were actively using the website to search for and/or engage in infidelity completed a brief anonymous online survey. Our findings supported previous research regarding emotional and sexual motivations for infidelity. However, we also found that various individual differences were connected to each type of motive. For example, sexual motivations for infidelity were best predicted by being male, having an unrestricted sociosexual orientation, experiencing less sex guilt, having greater Christian identification, and being less satisfied with the primary partner. Importantly, these were not the same patterns for each type of motivation (e.g., anger). Finally, participants' satisfaction with their secondary (i.e., infidelity) partners was not consistently predicted by the motivations for infidelity. This suggests that an individual-differences approach to predicting issues related to infidelity is an important approach for future research.

The Relationship Between the Motivation to Commit Infidelity and Negative Affect and Self-Esteem: How Cheating in Romance Might Signal Positive Well-Being in Adolescents

Infidelity occurs in adult romantic relationships quite often; however, little is known about this relational phenomenon in the adolescent stage, despite its being a surprisingly common behavior. Through a correlational study, we set out to examine how the various documented motivations to engage in an act of infidelity are associated with negative emotional responses, self-esteem, and psychological well-being. In a sample of Spanish adolescents (N = 346 [M_age = 15.71, SD = 1.27; range from 13 to 19]), results showed that committing an act of infidelity due to sexual or emotional dissatisfaction (vs. neglect and anger) is related to higher levels of psychological well-being by undermining negative affect, thereby increasing the levels of self-esteem. The discussion of the findings emphasizes that infidelity could favor adolescents' personal growth, because of the need to explore new sensations and feelings that arise during this period.

Providing Sexual Companionship for Resources: Development, Validation, and Personality Correlates of the Acceptance of Sugar Relationships in Young Women and Men Scale (ASR-YWMS)

A sugar relationship is a transactional sexual relationship in which a younger partner (sugar baby/boy) offers companionship and sexual services to a much older partner (sugar daddy/mommy) in return for material compensation. One aim of the present study was to develop an attitude scale assessing young women's and men's acceptance of sugar relationships. Another aim was to explore the possible associations of the acceptance of sugar relationships with psychological functioning in an intimate partner relationship and in a sexual relationship and with certain socially undesirable personality traits. Two online studies were conducted with a total number of 2052 participants (1879 women; age = 18-28 years). The results show that the Acceptance of Sugar Relationships in Young Women and Men Scale (ASR-YWMS) is a reliable and valid measure of young people's attitude toward sugar relationships. The studies revealed that young women's and men's accepting attitude toward sugar relationships was positively associated with unrestricted sociosexuality, a game-playing love style (Ludus), self-focused sexual motivation (Study 1; N = 319; 272 women and 47 men), and with socially undesirable traits such as Machiavellianism, subclinical psychopathy, and a borderline personality organization (Study 2; N = 1733; 1607 women and 126 men). These findings suggest that a relatively high level of acceptance of sugar relationships is part of a mating strategy focused on opportunities of maximizing resources. This utilitarian, risk-taking and exploitative attitude is characteristic to a fast life history strategy, and it is a fundamental organizing principle of psychological and sexual functioning in intimate partner relationships.

Coparenting and Relationship Satisfaction in Mothers: The Moderating Role of Sociosexuality

This study explored the moderating effect of sociosexual orientation on the association between coparenting alliance/coparenting conflict and relationship satisfaction in mothers in a romantic relationship. Sociosexuality is defined as a personality trait that reflects the individual difference in willingness to engage in uncommitted sexual relations. The study examined a community sample of 635 Portuguese mothers with a monogamous heterosexual relationship. Data on coparenting, relationship satisfaction, and sociosexual orientation were collected. The results revealed the moderating effect of sociosexuality on the significant associations between both coparenting alliance and coparenting conflict predicting relationship satisfaction. For the association between coparenting alliance and relationship satisfaction, mothers with a more restricted sociosexual orientation reported the highest levels of satisfaction when their coparenting alliance was high, but the lowest levels of satisfaction when coparenting alliance was low. For the association between coparenting conflict and relationship satisfaction, mothers with a more restricted sociosexual orientation reported the highest levels of satisfaction when their coparenting conflict was low, but the lowest levels when coparenting conflict was high. Together, the results suggest that especially for women with a more restricted sociosexual orientation, coparenting quality explains significant interindividual variability in relationship satisfaction.

Sociosexual Attitudes and Quality of Life in (Non)Monogamous Relationships: The Role of Attraction and Constraining Forces Among Users of the Second Love Web Site

Research has typically shown that unrestricted sociosexuality is negatively associated with relationship quality and that relationship quality is positively associated with quality of life (QoL). However, these findings may be restricted to individuals in monogamous relationships, especially those with prior extradyadic interactions (i.e., non-consensual non-monogamous; NCNM). Indeed, individuals in consensual non-monogamous (CNM) relationships have more unrestricted sociosexuality and are also more satisfied with and committed to their relationships. Still, little research has examined whether both relationship agreements are associated differently with attraction forces (wanting to be) and constraining forces (having to be) in the relationship and how they are related to QoL. We conducted a cross-sectional study with 373 heterosexuals (73.2% men, M_age = 41.15, SD = 10.18) registered on Second Love, a dating Web site for romantically involved individuals. Results showed differences in the hypothesized model, according to relationship agreement. For individuals in CNM relationships, unrestricted sociosexuality was associated with stronger attraction forces, which were then associated with greater QoL. The opposite pattern was found for those in NCNM relationships. Furthermore, and regardless of relationship agreement, unrestricted sociosexuality was associated with weaker constraining forces, which were associated with greater QoL. These results make a novel contribution to the literature on relationship agreements and how they relate to QoL.

A Life History Approach to the Female Sexual Orientation Spectrum: Evolution, Development, Causal Mechanisms, and Health

Women's capacity for sexual fluidity is at least as interesting a phenomenon from the point of view of evolutionary biology and behavioral endocrinology as exclusively homosexual orientation. Evolutionary hypotheses for female nonheterosexuality have failed to fully account for the existence of these different categories of nonheterosexual women, while also overlooking broader data on the causal mechanisms, physiology, ontogeny, and phylogeny of female nonheterosexuality. We review the evolutionary-developmental origins of various phenotypes in the female sexual orientation spectrum using the synergistic approach of Tinbergen's four questions. We also present femme-specific and butch-specific hypotheses at proximate and ultimate levels of analysis. This review article indicates that various nonheterosexual female phenotypes emerge from and contribute to hormonally mediated fast life history strategies. Life history theory provides a biobehavioral explanatory framework for nonheterosexual women's masculinized body morphology, psychological dispositions, and their elevated likelihood of experiencing violence, substance use, obesity, teenage pregnancy, and lower general health. This pattern of life outcomes can create a feedback loop of environmental unpredictability and harshness which destabilizes intrauterine hormonal conditions in mothers, leading to a greater likelihood of fast life history strategies, global health problems, and nonheterosexual preferences in female offspring. We further explore the potential of female nonheterosexuality to function as an alloparental buffer that enables masculinizing alleles to execute their characteristic fast life history strategies as they appear in the female and the male phenotype. Synthesizing life history theory with the female sexual orientation spectrum enriches existing scientific knowledge on the evolutionary-developmental mechanisms of human sex differences.

Perceived sexual self-control and condom use with primary and casual sex partners: age and relationship agreement differences in a Portuguese sample

OBJECTIVE

Consistent condom use is still not ideal. Research showed that perceived sexual self-control is associated with greater likelihood of using condoms. However, this association seems to vary according to age and relationship agreement (i.e. non-consensual non-monogamy, NCNM vs. consensual non-monogamy, CNM).

DESIGN

Cross-sectional study with 307 heterosexual users of a dating web site for romantically involved individuals (81.8% men; M_age = 42.24, SD = 9.65, range: 23-76 years). All individuals were in a romantic relationship (M_length = 13.47 years, SD = 9.39).

MEASURES

Demographic information, perceived sexual self-control, condom use frequency (casual sex partners; primary partner in the last 3 months) and relationship agreement.

RESULTS

Independently of relationship agreement, perceived sexual self-control was positively associated with condom use frequency with casual sex partners among younger and middle age participants, but not older ones (>49 years). Regarding the primary partner, a similar pattern emerged for CNM participants. In contrast, no significant association between perceived sexual self-control and condom use frequency with the primary partner emerged for NCNM individuals, regardless of age.

CONCLUSION

Our findings can inform evidence-based strategies to promote consistent condom use as an effective behaviour to prevent sexually transmitted infections, especially among older and NCNM individuals.

Motivations for Sexual Behavior and Intentions to Use Condoms: Development of the Regulatory Focus in Sexuality Scale

Despite recurrent efforts to prevent sexually transmitted diseases through the use of condoms, HIV infections are still prevalent across Europe. Recent research framed by the regulatory focus theory has shown that prevention (vs. promotion)-focused individuals are more likely to adopt strategies to protect their health. Therefore, these individuals should also be more motivated to use condoms, because they are more likely to perceive greater health threats. In two cross-sectional preregistered studies (combined N = 520 Portuguese participants; databases available at https://doi.org/10.17605/osf.io/zzkc2 ), we developed the new Regulatory Focus in Sexuality scale (Study 1), and tested if the association between prevention focus and intentions to use condoms was mediated by the perception of health threat (Study 2). Results from Study 1 suggested that the scale is reliable and valid. Results from Study 2 showed, as expected, that a predominant focus on prevention was associated with more condom use intentions with casual and regular sexual partners, because individuals perceived greater threat to their health. Additional exploratory analyses further showed that this mediation occurred only for individuals without a romantic relationship and was independent of how salient the condom use norm was. In contrast, for romantically involved individuals, there was no evidence for the mediation by perceived health threat. Instead, a predominant focus on prevention was positively associated with condom use intentions with the regular partner, but only when the condom use norm was more salient. Taken together, these results emphasize the importance of examining individual motivations for safe sex practices.

Influences of Sociosexuality and Commitment on Online Sexual Activities: The Mediating Effect of Perceptions of Infidelity

The perceived infidelity of online sexual activity (OSA) has been noted as an important factor contributing to individual differences in OSA among people in romantic relationships. We proposed that two major factors related to infidelity-sociosexuality (willingness to engage in uncommitted sexual relationships) and commitment-might be associated with engaging in OSA via the perceived infidelity of OSA among individuals in romantic relationships. OSAs were classified as viewing sexually explicit material, seeking sexual partners, cybersex, and flirting. Participants were 313 heterosexuals in romantic relationships who completed measures of OSA experience, sociosexuality, commitment, and perceptions of infidelity. The results showed that more unrestricted sociosexuality and less commitment were associated with more frequent engagement in OSAs. Moreover, perceptions of infidelity mediated these associations of sociosexuality and commitment with OSA. These findings suggest that perceived infidelity is important for understanding the mechanism underlying people's engagement in OSA.

Caught in a "Bad Romance"? Reconsidering the Negative Association Between Sociosexuality and Relationship Functioning

Sociosexuality refers to individual differences in interest and willingness to engage in sexual activity without an emotional connection. Unrestricted sociosexuality is associated with a greater likelihood of infidelity and with poorer relationship quality. However, previous research has failed to examine relationship-specific characteristics that may moderate these findings. Two studies of romantically involved adults examined whether relationship commitment and different relationship agreement types moderate the associations between unrestricted sociosexuality and infidelity. Study 1 (N = 300) showed that individuals in consensual monogamous (CM) relationships with extradyadic sex (EDS) experiences were more sociosexually unrestricted than individuals without such experiences. The positive association between unrestricted sociosexuality and EDS emerged only for less, but not more, committed individuals. Study 2 (N = 270) replicated these results. Furthermore, results showed that individuals in consensual nonmonogamous relationships (CNM) relationships were the most sociosexually unrestricted, but no differences emerged in relationship commitment or satisfaction, when compared to individuals in CM relationships without prior EDS. Individuals in CM relationship with prior EDS were the least committed and satisfied. The negative association between unrestricted sociosexuality and both relationship quality indicators emerged for all individuals in CM relationships, but it was nonsignificant for individuals in CNM relationships. Implications are discussed.