Not sure who is friends with who in this movie, or why it has happened that this guy and his girlfriend have come to be sitting on a couch with some old dude, discussing fuck knows what. The important thing to remember about the movie is that the boyfriend eventually leaves the old guy and the girlfriend alone together. This is when the old guy turns on his old dude charm and ends up playing around with her boobs. One thing leads to another and before long they're fucking good and hard and there is little that can be done about it unless you have a bucket of water. Her boyfriend comes back into the room eventually and he ends up joining in with the action, actually grateful of the experience.