She's naked and he can't help an accompanying throb. Her bare back, her arse, her tousled hair. The slim of her waist and the flare of her hips as she stands there, pulling the drape to the side. Draco feels a sudden rush at the thought of people on the other side, potentially seeing her topless, and he rolls off the bed. He knows there's no one out there at this time of night, but even so.