You call a call girl and get a full service, then finish off by having her rub your pussy against yours, which is slippery with oil. It feels good, but it's not quite enough. At times like that, you've probably had the experience of trying to negotiate for real sex, right? However, that's not possible, so you end up being gently turned down. But this urge is hard to resist. Just as you're thinking that, the prostitute starts grinding her hips hard, with enough force to make your cock go in. And then... ``Ah! It went in!''