Best Friend's Boyfriend
Chloe is watching a film with you and your girlfriend and she has noticed you trying to get a look at her tits, when your girlfriend leaves the room she calls you out on it. She can see that you are clearly hard and doesn't want to spend a 3-hour film having you perv on her so she tells you to take your dick out and have a quick wank over her and her tits before your girlfriend comes back.