I'd be upset if you did. [Also not actually expecting to hear a peep out of Sam afterwards, but well aware that he may well be providing wank material for months to come. He's fine with that. He likes people thinking about him.
Sam's jeans off, he crawls back up his almost naked body to the figure-hugging shorts. Rather than pull them down, however, he just leans low over them and breathes warm breath onto the glorious shape of Sam's cock, then lowers his mouth still further to cover as much as he can of it, just breathing warm, moist air onto the fabric.]