[Len grins, working Barry over until he spills over his hand. He continues to stroke slowly, gauging the way Barry is reacting, to see if he's too sensitive to continue. But if Barry isn't struggling to get away or acting like what Len is doing is painful to him, he'll work his way up to jerking him off again]

That's it, kid. Fuck, you're hot. Do you know how gorgeous you are? I've wanted to do this since the first time we met. Wanted to fuck you until you screamed my name, and begged me for more, until you couldn't think about anything else. You're beautiful, Scarlet, so fucking beautiful.

[He whispers the filthy endearments into Barry's ear in an unending litany as he works his hand over him again and again]