Venus is a little quieter when she comes, the sound choked back a little as she spills all over herself, each thrust jerking more cum out of her.

When she starts to come down from that high, she keeps rubbing her hands along his back. "Mmmhmmm. Hot fuckin' damn, indeed, lover."

There's a little bit of her that's on guard. Maybe this is when he freaks out? When he realizes that being with a freak like her was fun for the moment, but now in the clarity that comes after orgasm, it's no longer fun to walk on the wild side.