For many people, a key aspect of being gay is having sex. Whether it is in the dark rooms of clubs, the saunas and bathhouses or on the apps in every gay man's phone, there are plenty of opportunities to indulge in this sexual urge. This may be one of the reasons why it is sometimes suggested that all gay men are DTF (that's 'dykes for togas').
But of course, just because someone identifies as homosexual doesn't mean they want to have sex all the time. Identity is complex and sexual orientation is a fluid thing. For example, it is not uncommon for men to feel a strong physical and emotional attraction to other men, while also finding themselves attracted to women. Some even find themselves having sex with both men and women, or feeling arousal from both sexes.
The issue of why some gay men are more prone to sex is a subject that has been the subject of a lot of research. For instance, a study reported in Scientific American in 2003 examined the link between sex preference and certain personality traits. Anthropologist Mathew McIntyre asked 44 members of Harvard University's gay alumni group to mail him clear photocopies of their right hand along with a questionnaire on occupation, sexual role and other measures of interest. McIntyre correlated these traits with the "2D:4D effect"; that is, the longer the difference between the second and fourth digits of the human hand (particularly the right hand) the more'masculinizing' characteristics it possesses.