Sirius glances up from where he's focused on opening Kieren's trousers to flash a smile. Kieren's touching him already, his fingers in Sirius's hair and he nods in agreement as he slides his hand into Kieren's pants, fondling him one more.

"You can touch me wherever you'd like," he says, gaze dropping as he gently frees Kieren's cock and lowering to mouth lightly along the soft skin. It isn't like any blowjob he's ever given, strange in a number of different ways. It's entirely selfish in a way this act isn't typically, but Kieren's letting him indulge and Sirius taking it, his tongue flicking out to taste along the tip before sucking just at the head.