"As long as I like? I'm not sure that sounds good," he said, worrying just how long he could go on being amused, but then he shouldn't have worried. This was Sirius and he had as much patience as he did, and very soon his dick was enveloped in heat.
"Go." Maybe this was a good time to reconsider the tying. He loved to touch Sirius' hair while he got blown, hold him while fucking his mouth. He could do none of that now. It was horrible. It was amazing.
For once, he didn't have to worry about what to do, or how to reciprocate. He could lay there and let Sirius do what he liked while pleasure spread through him like a soft fire, moving slowly but not leaving any part of him untouched.