One reason anal sex is so pleasurable is that it requires us to relax these overly-tight muscles. You can have the rest of your body relaxed and still have a tense sphincter. Relax the sphincter, though, and you re not likely to find much physical tension anywhere else in the body. Odd, then, that anal sex has often held a sense of the forbidden about it. Sexism and homophobia make anal sex a taboo in Western culture.
Homophobes often misunderstand anal sex as somehow passive and feminine.
This is ridiculous, of course. We all know lots of masculine men who prefer to be the receiver when it comes to fucking. Many gay men find the experience of anal sex has a spiritual component to it. If you think of sex as an exchange of energy, male sexual energy is typically hard, driving and forceful. Taoists call this energy yang .