The concept of straight men who have sex with men challenges the traditional and for many the unyielding belief that sexual behavior is indicative of identity. Using this stricture as guide, a man who has sex with another male must be gay or bisexual at the least. Straight-identified men who have sex with men report fewer STDs in the past year than gay men. SHARE The last posting described a population of males who consider themselves heterosexual, do not label themselves gay or bisexual, who eschew involvement with the LGBT community, who are often married or romantically involved with an opposite-sex partner, and who engage in sex with males or express the desire to do so. The low rate of condom use makes the straight-identified men vulnerable. Recall from the previous posting that straight men who have sex with other men SMSM do not generally share details about their same-sex sexual activity or desire with significant others in their lives. Research with this population is difficult due to the challenges of reaching these men — the majority of whom keep this activity covert. King, On the Down Low: Recall from the first posting that researchers increasingly call for studies to include a comprehensive description of sexuality , one encompassing self-identification, arousal patterns, and behavior. Then they asked about specific sexual behaviors. Straight-identified men who have sex with men are more likely to be foreign born than gay men. In nearly every study of sexual behavior, the percentage of men who report sex with men is higher than the percentage of men who report being gay.