Hedwig might not think sex is exercise but he definitely has exercise - specifically ab rolling - to thank for the stamina Danny can show on his back. His stomach muscles are as tight as the grip he has on Hedwig's hips, which is hard enough to leave hand prints when he eventually lets go.

Rising to his elbows, Danny watches Hedwig through his eyelashes, gritting his teeth to keep in control, but it becomes clear from the heavier breathing and the way he's fisting his bedsheets that it's becoming more and more difficult.

Reluctantly, he relinquishes the driving seat to Hedwig, letting him dictate rhythm and roll, and it's not long before Danny's head tips back and he's echoing Hedwig's earlier sentiment, but louder, more protracted and like he can't quite believe how good it feels.