My Favourite Game

You and Sophie are playing a game, you are soon much more interested in her though. She is wearing a low cut black top and you can see plenty of cleavage, you can't help but get an erection and it doesn't take Sophie long to spot the bulge in your trousers. She instructs you to take it out and start wanking but tells you to do it quietly because her parents are upstairs and you could get caught at any moment.