My Housemates Ass

I live as a student in a normal house with five others. Two of them are girls. There's a girl opposite in the room opposite mine who has the most perfect ass I've ever seen and I dream of seeing it undressed on a regular basis. Sometimes, while I masturbate with my door unlocked, I hope she will accidentally walk in and catch me with my hard dick out and instead of being shocked, she'll bite her lip, close the door behind her and before milking it dry with that perfect ass of hers and then sneaking back out, leaving both of us satisfied and with a new secret in the house.