[though sizhui's momentarily rendered speechless by that, it doesn't stop the consistent motion of his hips. no, that only hesitates when byleth lifts him further, to the point he could probably safely wrap both legs around byleth's waist and they'd still be able to keep fucking— rather than testing their luck right away, sizhui reaches with the arm byleth lets go of and circles his partner's shoulders, helping ease any possible effort, despite byleth clearly not needing it.

he's already so close as well, but he cinches the limb around byleth's shoulders, practically holds his breath and rides out the other man's orgasm, panting roughly at the heat flooding his backside, which does almost tip him over the edge. somehow, sizhui's held out, leaning to again hook his chin over byleth's shoulder so he can murmur beside his ear,] Keep going, you're fucking me so well, [there comes a pause, just long enough for him to catch his breath too, and yet he stutters anyway:] L-Lift me higher though, then we'll shift a little... that way I can sit in your lap and ride you.