The sounds Stiles made never failed to arouse him, moreso when he was sinking into him and that low moan made his gums tingle. Control was - had he warned Stiles that his control would be so low? That his mate would feel so good, that Derek knew it would be so fucking good to slide inside him that his control would be shot?
Something that was proved with every inch he slid inside? He couldn't stop from fastening his mouth to the offered throat, sucking a mark high where he longed to leave a bite, his gut twisting as held himself back.
It would not be in a few months that he'd leave that mark. However good his self control, it wasn't that good, and he couldn't help licking slowly over the skin. Once Stiles was knotted up -- he groaned against his skin as Stiles cursed. "Gonna leave my mark here once I'm knotted, going to show everyone that you're mine, that you're mated--" and in a couple weeks he'd get his own while Stiles was in his heat--
His hips pulled back slowly, a whimper rattling in his throat before he thrust in again with a low, pleased moan, the plug inside him pushing up hard against his prostate. Gentle or hard, Derek was sure either way wasn't going to last long. Stiles felt too fucking good -- a sentiment his mate seemed to share.
And more, because Stiles kept talking, and his knot throbbed inside him, a little whine working out. Stiles could -- Stiles could come like this, just having him inside was enough -- and Derek had to let go, his nails growing into claws as he fisted the bedsheets. "Do it, Stiles, do it, baby, wanna feel you come so I can knot you up--"
It wasn't going to be sweet and gentle, couldn't be, even though Derek did his best to go slow and listened for any little sound that said he was hurting his mate. But he wanted him too much, needed this, as he pulled out to the tip and rutted forward again, hoping, wanting, needing, that Stiles came before he tied them together. "Baby, baby, Stiles, Mieczyslaw, please, need to, I need to--" The growl that came out was more feral than human as he stroked in again, his knot starting to swell as he rocked it in and out of his rim. "Wanna fill you up like you did me--"