Cassidy let out a short, muffled moan, keeping the rhythm steady and taking on a bit more, until he felt the tip of Matt's cock against the back curve of his tongue. He wasn't quite taking Matt all the way into his throat, though he knew he technically could -- deep throating was easier when you didn't need to breathe, but the gag reflex was an instinct so ingrained that he still needed time to work past it.

Anyway, he didn't want to ruin his enjoyment of the moment by risking Matt's blood-cum spurting into his mouth. The fact that Matt already had an alternate plan for finishing himself off was its own sort of encouragement. Cassidy kept working Matt's cock in shallow strokes, pulling halfway off before sinking down again, like he was sucking on a popsicle.