He swallows hard, and pushes up so he can lock his arms out. He wants to watch her, so he can give her what she wants. Wants to see everything on her face. His breath comes hard already, and - not that he'll ever admit it - there's a voice in the back of his mind yelling, you're shagging Alex Drake! which is a little distracting. Not that that's necessarily a bad thing at this point.

'Y'OK?'

It's a tad breathless and he starts slow, a gentle push-and-pull. This needs to last a bit, otherwise he'll never live it down. And anyway, they have time.