No, it sounds too good to be true

You're pretty sure that sounds like bullshit. You keep trying to get yourself a drink, and finally succeed. Turning back to the dancefloor, beer in hand you see that some guy has moved in on the girl.

He is standing behind her and she is grinding back into him. He has one arm around her, his hand low on her stomach, fingers pointing down almost cupping her mound. The other hand rests on her hip. As you watch you notice he is slowly hiking her dress up, revealing more and more thigh, her pale flesh shining under the lights.

The sight of her legs being slowly exposed beyond the point of decency almost distracts you from noticing that her hand is behind her, between his body and hers. Could it be down his pants? It's hard to tell in the dark...