Fics like Long nights, sleepless days

"Did you even pull out from last night?" Stiles asks, remembers Derek fucking into him teasingly, edging him to the brink of orgasm so many times that when he finally did allow Stiles to come, it was with the slightest roll of Derek's thumb gliding through the precome leaking from the head of his cock. Stiles twists his head to look at Derek, but his back is kept flush against Derek's chest when the arm around his waist drapes over his chest, only managing to turn himself enough to look at the ceiling. "No," Derek replies, shifts again, still getting harder inside of Stiles, his thick shaft dragging against Stiles' already sensitive rim, makes his breath catch. "But - god, wow, that feels - wait, didn't you knot me the second time around?"