Tom knows. This, at least, is something he's done before and enjoyed doing. But he hasn't even been bound like this, helpless like this, and when he feels Mike's dick against his lips he opens his mouth and closes his eyes, tension seeping out from between his shoulders.

He moans at the familiar heat and weight and taste, moving his tongue in slow sweeps along the bottom of his dick. He takes a moment to enjoy the moment, opening his eyes to see the reaction on Mike's face.