Derek sat in a chair in Stiles' room, Stiles in his lap. It had started off with a tutoring session in chemistry (science had always been Derek's favorite subject, and one of the only he ever cared about), but Stiles had very, very quickly gotten distracted by Derek's sexiness—which was not hard to do. And things went downhill from there. But like Stiles had said, "it's never 'just studying'."
Derek kept kissing Stiles' neck and shoulders, Stiles clenching Derek's shirt at his hips tightly in his fists, moaning over and over. Derek grinned, letting his fangs sharpen as he scraped them along Stiles' tender, soft skin, with so much control it made Stiles shiver.
"You know… We're gonna have to do this at some point…" Derek murmured, "If you've already made up your mind about this…"
"Do it…" Stiles murmured, "Do it now…"
"Are you sure?" Derek whispered, "You're ready?"
"Depends on how you define 'ready'…" Stiles remarked. "But do it, just do it," he finished, closing his eyes in expectation. He turned around so he was facing Derek, eyes deeply longing.
"I'm going to do this as painlessly as I can… I won't make it too deep… And it'll be fast…" He waited for a moment, so he'd catch Stiles off guard, and then he plunged his teeth into Stiles' arm, targeting an area that would cause minimal pain and bleeding.
"Aaaggghhhh!" Stiles shouted through his gritted teeth. As Derek pulled away, he placed his hand in front of Stiles' lips for him to use, and Stiles bit down hard. Derek winced at the sudden sharp pain, but he didn't move. He placed his hand on the back of Stiles' head, and pulled it down to his chest, holding Stiles to him to try to comfort him. It worked. Stiles had never felt so safe or comfortable than when he was in Derek's arms…
Stiles whined for another moment, but he sucked in a deep, shaky breath, staying strong like he always tried to. He grunted, opening his slightly watering eyes. He nuzzled his head into Derek's stomach as he breathed in and out. Derek knew this would only make Stiles better—he always saw the bite as a gift, after all. But it just felt so wrong changing Stiles in any way—especially in such a big way… He held Stiles tightly though, knowing it would all be better soon…