Anal sex, and a desire for anal sex, serves different purposes for men. It will be dangerous. Anal is the third installment of the trilogy. Some people see a man having anal sex with a woman as a form of dominance, where the man is "having every part of her body. Where couples have oral sex, and anal sex, is there another taboo on the horizon? Also you get to goof up in there. Dick goes into her body, but I still get a perfect view of that vagina. Plus nothing says I love you like allowing me to stick it anywhere I want. The woman willing to take on pain for your pleasure is incredibly selfless and sexy. But every so often, you just wanna go play in the grass. So less tension of things possibly going wrong and having a major life change. Is there a slippery slope of taboo, that once started on, you glide down on a slick, unstoppable grease of bedroom lubricant? On the pleasure side of things, it provides a nice change in sensation from vaginal, oral, and manual stimulation. Both totally awesome, obviously. In porn, however, the attraction to anal is different for me. And, for those couples who have had anal sex, it usually remains a rarity for them as well, not an everyday occurrence, thus retaining its "specialness.