“Gay men have fetishized straight men to some degree based on seeing them as more masculine,” says Joe Kort, a gay sex and relationship psychotherapist who works primarily with an LGBTQ+ client base. To be clear, there is wide individual variability-but if gay men tend to be attracted to masculinity and straight men as a group are more likely to conform to masculine gender roles, then it’s not hard to see why so many gay men would be searching for porn featuring straight guys. Study after study has found that gay men are less gender-conforming than straight men on average, meaning that they’re less likely to adhere to strict ideas of what boys and men are “supposed” to act like. This helps explain why “Masc4Masc” is such a common term on gay dating and hookup sites. This preference for masculinity is strongest among gay men who identify as masculine.
Gay men also rate prospective partners who describe themselves as masculine more favorably than those who describe themselves as feminine. For example, gay men tend to be attracted to masculine-looking faces and to other signs of masculinity, such as muscularity. Research into the partner preferences of gay men suggests that, on average, they tend to be drawn to masculinity.