"Best way to teach the boy, innit?" Sirius said through a blase grin, peering down to appraise Adrian's fingers at work. Judging from the lack of rushed fumbling, the bloke knew what he was doing. Not that he had ever called Adrian's experience into question. No, someone who could throw in a bit of effective teasing had been around the detrousering block more than a few times.
Sirius couldn't have hid what that graze of teeth did to him even if he'd wanted to. The jeans hid little, and his cotton briefs hid even less than that. He didn't protest or put up resistance when both where shoved out of the way, showing Adrian what the master had to offer. Which was a lot. Sirius Black had a reason to wear the little cocksure smile on his face.
"Gonna show me what you can do with that pretty mouth of yours?" Sirius twisted his fingers in Adrian's hair. He was a bloke would could take it rough and give it rough. If Adrian couldn't say the same he'd have a riot.