When you bend a chick like Misty over and eat her out from behind, one of the best things about it is how your nose automatically gets jammed up in her bunghole. It’s not that you mean to, it’s not that she means for you to, it’s just how it works. You may at the time think - oh gross. Or maybe you think - gee, smells a little funky. But later on, after she has dumped you and you hate yourself for your failures, you will think back to that asshole-nose event… and you will whack off. Again and again.