Stiles moaned helplessly as he rode through his orgasm, still kneading at Derek's backside, gripping, twitching his hips up to press into his mate again and again.
"I'll lick you out when we get back," he panted. "When we get back. Get you all worked up so that you need to be inside me, knotting me-"
His breath was robbed from him as Derek came as well, the arch of his back and the sheen of sweat on his skin, the flush that crept up his bare throat. Derek was perfect, he was a wet dream come true, Stiles was never going to get tired of this.
Blindly he grasped for the plug he'd chosen for Derek and, for a fleeting moment, wondered if he could fit it in alongside his cock. Really stretch Derek. Just for a moment. But no, he wanted Derek to pull off, turn around, let Stiles see just for a moment the come leaking from him before he pressed the plug into his mate's still sensitive body.
Derek's come had coated Stiles' chest, which they'd both be happy about. He'd go to dinner smelling of Derek, even after the little shower he was planning on taking. Any alphas they saw there would know he was Derek's. And he liked that. He liked being Derek's.
"Slide off my cock and turn around," he commanded gently. "I want you to keep as much in as you can. And I'm going to put this in you." He ran the blunt, tapered end of the plug over Derek's thigh. "You want my knot, huh? Come on. Turn around."
Stiles was certain if he took his own plug out now he'd soak Derek's bed through. It was strange to not feel the wetness on his thighs as he had every other time. And he loved Derek complimenting him on his wetness. But when he'd had Derek inside him later- oh, he knew he was going to make a mess. "You get to feel what I'm going to feel later-"
The base of Derek's cock was only slightly swollen now, the stimulation from inside not enough to make it grow as big as it did other times. But that was good, he'd get Derek so ready to knot him, and it would feel amazing for his mate.