We are roommates and I come to your for a favor. The holidays are right around the corner and I want you to pretend to be my boyfriend at my parent's Christmas Party. You agree but I have to do something for you in exchange. You ask if you can jerk off to my ass and cum on it. I'm taken back but am desperate for your help so I oblige. I'm hesitant to reveal my ass at first, taking your instruction. I take off my panties, shake my ass, spread my cheeks and then give you a cum countdown to blow your load on my juicy booty.