Assfucking my buddy's ex

I had a bet with a buddy of mine who just broke up with this shy teen chick he knew from college. She'd never let him fuck her in the butt and I told the guy I'd go anal with this kitten on a very first date. Little did he know that not only would I fuck his ex-girlfriend ass to mouth on a day we met, but she'd also let me give her a nasty anal creampie and rub the sperm into her anus like extra lube.