"Mmhm." He barely made any sound at all, his breath buffeting up against the head of Matt's erection. His lips threatened to pull into a smile for a split second before he remembered to get back to work.

Remembering came with an impulse: Cassidy drew his mouth all the way off in order to do one long lick up the underside of Matt's cock before taking it between his lips again with the same enthusiasm as before.