"Trains," he began, his voice casual and sly. "They make me hot." That was obviously a lie and he didn't even try to pretend that it wasn't. "Actually, I was sitting here thinking about how I'm going to fuck your arsehole when we get back to the dorms."

Because that was Lawrence's mentality: Give a girl a diamond, you were automatically obligated to get anal. Or maybe that was just his mentality with Addy, since she seemed to enjoy how crude and horny he could be sometimes. At least when it was directed at her, anyway.

He moved his hand away so hers could take over, if she wanted to. He encouraged her by leaning in to murmur close to her lips. "But then again, why wait until we get to the dorms? How about you suck me 'til I'm hard and I'll bugger your sexy bum right here in the train."