A white girl is sleeping near a lake or something and a guy comes and sees her there. He takes a glance at his girlfriend in distance and when she’s not looking he pulls up the t shirt of the girl who’s sleeping and kisses her boobs. Suddenly something starts to move in the water. It’s something black. Not any animal but something black water like.

I have been trying to find this movie since a long time. But I don’t know the name. Just this scene. I saw it 6-7 years ago. Help please.