Anal in porn appeals to me if its an act of submission on the woman's part and you can tell she's struggling with it or at least good at faking a struggle. When they can shove a bowling pin up their ass with a smile then its a turn off. As far as real life I'm not interested....that is where shit comes from and I insist girlfriends or women I spend a lot of time with for recreational purposes hide the fact they defecate from me. Quickest way to kill my wood is a skid mark in a pair of panties. I might ask for anal from a woman but only to observe her reaction and to see if she'll let me do it after claiming to not be into it. If she's down for it right away or likes it I lose all interest. I want her reluctant, hesitant consent more than anything else but I'll follow through to avoid the eventual claim that I'm playing mind games if I don't.