The most humiliating place where bully could cum is definitely my mom's asshole. She would be bent, her huge tits would hang and swing and her ass would be up, while he would use her very tight asshole as his pleasure hole. She is really shy and would probably tighten her asshole even more, but that would only make him push his fat cock even deeper. After using my mom's asshole as his flashlight, he would dump all his cum in her big, fat ass... making me watch his cum slowly drips out of her asshole...