There is something about the sounds that Tony makes that Bruce finds himself wanting to bring more of, enjoying more than he would have expected. His fingers move without even the skill that men would normally have - it's been years since he allowed himself to do anything sexual even with himself.

But he does try, following the instructions given to him and what made Tony gasp and mewl, and he watches. Tony's face is intriguing to watch like this, how his expression changes, the parting of his lips and the sounds that come from them.

More than intriguing, if he let himself feel it all.