Gellert arched a single brow when Albus spoke but did not respond. There was no need; it was clear from his calm, relaxed posture on the stool and the way he was resolutely looking at Albus that he did not care one bit what Albus enjoyed. And that he had no intention of turning his back while Albus changed.
Albus pulled off his shirt and Gellert's gaze immediately dropped downward, dragging over the smooth skin of his chest, its contours, lingering on the rose tinge of nipples and the faint indent of his waist, then dropping to his navel and pale flesh vanishing beneath the fabric of his trousers. It was a bit of a disappointment when Albus pulled on the new shirt, though the sentiment was short-lived...for then Albus was turning his back and tugging off his trousers.
Gellert could not help the way he straightened up just a little bit, leaning forward in his chair, expression nothing if not greedy. And when Albus leaned forward to pull on the second set of trousers, Gellert smirked. He really did have a fantastic arse.