So with gay guys who have casual sex, why is it necessary that the sex be with other males? Is it because you identify yourself as a homosexual so therefore you only sleep with guys? Is it an attraction/affinity to the male form that you are responding to? Do you want a big strong dude next to you when experiencing physical pleasure? If so, why not just have sex with a body builder chick?
Before anyone tries to flip this on me, the reason I sleep with women even in casual encounters is because I like the softness of tits and a woman's ass. You might then ask, why not just sleep with a fat guy? And I respond that you are an idiot.