He fucks his girlfriend's sister in the ass while she sleeps

How lucky is this bastard who fucks his girlfriend's sister the moment the girl falls asleep on the couch. The three were watching a movie together when the very tired bride is sued. The little sister wanted to fuck her uncle for a long time so as not to waste time and start sucking his cock hard. Then he tells her she won't fuck her pussy because she's a prostitute who loves anal sex, something her sister would never do.