AN: This contains intercrural, in case anybody was confused about what Blaine was suggesting they do. (or if anybody is squicked out by it).
He got up and shucked off his clothes, watching out of the corner of his eye as Kurt did the same, and then he flopped onto his stomach for Kurt. As the younger boy settled next to him on the bed Blaine rolled onto his side so he could pull Kurt in for a kiss. "We'll need lube," Blaine said, pointing to Kurt's nightstand where'd he'd long ago stashed the lube, then he rolled back onto his stomach.
"Okay," Kurt said distractedly. Blaine looked over his shoulder to catch Kurt's eyes darting away from his ass, he held in the laugh, it would embarrass Kurt SO much.
Kurt leaned over him to get the lube out of the nightstand, naked body pressing gently against Blaine's backside. Blaine let his eyes drift shut, enjoying the warmth and closeness of the moment. Soon Kurt settled back on his haunches, letting one hand trail over Blaine's lower back.
"What do… Um, how do we do this?" Kurt asked.
Blaine took one more relaxing breath and then raised himself to his hands and knees. "Kneel behind me. I'll need my legs together, so straddle them."
"Okay," Kurt said and Blaine looked over in time to see him still nodding.
"I'll need some lube on my thighs, and you'll want some on your cock too. Do you want me to put it on me, or do you want to do it?"
Kurt gasped and threw a leg over Blaine's. The younger boy's hands found his back, sliding up and down a few times. Blaine heard an audible swallow. "I'll do it." Kurt's voice was barely a whisper, raspy with want.
He'd been starting to feel a little awkward as he was, but with that tone in Kurt's voice, Blaine's cock jumped. The loud popping of the lube bottle sounded in the room, followed by the sound of some squirting into Kurt's hand. "Um… it'll be a little cold I think."
"That's okay," Blaine said and wriggled his ass. Kurt gasped loudly behind him, one hand coming down to wrap tightly around his hip. "It'll warm up."
"Alright," Kurt said and swallowed audibly again. Kurt's other hand hovered near where Blaine's thighs were pressed together, radiating heat while he gathered his wits. It was kind of – interesting, Kurt hadn't been this nervous to try something in a while. Maybe he should just do it himself? Or maybe they could go back to something they already knew, Blaine certainly wouldn't mind giving Kurt another blowjob.
He was about to open his mouth and say something when Kurt's hand dove between Blaine's thighs, slicking up one of them easily. Kurt moaned, forehead colliding with Blaine's lower back. "Blaine, I didn't know a person could look so hot when I can't even see their face." The hand between his thighs rubbed up and down. Kurt dragged his fingers up to Blaine's balls and fondled them gently, drawing a loud moan out of Blaine, before switching to the opposite thigh, coating it with the rest of the lube.
Kurt was technically done now, but his hand stayed right where it was, rubbing up and down Blaine's thighs, making a U of it as he crossed over Blaine's balls repeatedly. The hand on Blaine's hip tightened more and more, until Kurt's fingers were sure to leave marks on his skin.
"I think it's good now, Kurt," Blaine finally said, his voice coming out as a croak. "PLEASE, Kurt."
Kurt kissed just above Blaine's tailbone, sucking just a little. It sent Blaine wild. Kurt pulled his hand away and went back for the lube. Blaine used the time Kurt was slicking himself up to press his thighs tighter together and brace his weight more comfortably on his forearms.
"I'm sure you can figure it out, but I've found it feels better when you put it near the top," Blaine advised.
Kurt loosened his vice grip on Blaine's hip and suddenly he wasn't touching Blaine anywhere. Blaine opened his mouth to protest, but Kurt's hands were soon back, surprising Blaine with their placement. Blaine moaned in a low voice as Kurt grabbed his ass, squeezing the cheeks he'd never REALLY touched before almost roughly before cupping them and running his thumbs in an arch close to his crack. Blaine's head fell against the pillow, breath suddenly ragged.
He'd barely ever been touched like that, and he LOVED it so much. Kurt's thumbs caressed him again, even daring to pull his cheeks apart slightly. Images and thoughts of Kurt fucking into him suddenly flooded Blaine's mind and made his mouth water. He'd never been fucked before. He'd never gotten past first base with his first boyfriend and his second hadn't been interested in topping. His singular one night stand had only been mutual blowjobs and he hadn't trusted Sebastian enough during their three month fling to do it. But now, like he'd never experienced before, he could picture bottoming for someone realistically. Blaine was a bit floored to realize how much he trusted and liked Kurt.
Lost in thought he almost missed the shuffle of Kurt's knees as the boy got closer, close enough for Blaine to feel the body heat radiating off him. Then Kurt's right hand left his ass and presumably wrapped around Kurt's dick to hold it steady as the younger boy pressed his cock to the apex of Blaine's thighs.
The first thrust in left them both moaning MUCH too loudly for so little movement, however, neither of them cared. What was more important was the feel of Kurt's cock between Blaine's thighs, sliding through enough to rub Blaine's balls and slid partly up the underside of Blaine's cock.
Kurt's right hand came back, settling on Blaine's mid back, and then Kurt pulled out only to thrust back in. They moaned in unison. Kurt thrust again, and again, and again, until Blaine stopped trying to keep track and started melting into Kurt's bed. His arms were shaking with the effort to keep him up and his thighs were starting to burn with how tightly he needed to press them together.
Kurt's hitched cry, different from the moans of before, caught Blaine's attention when Kurt changed his angle and was suddenly able to thrust harder. It was beautiful, and Blaine kind of wished he could see the face that went with it.
Kurt's change in angle brought his cock more sharply in contact with Blaine's, increasing Blaine's pleasure as well. He found himself rocking back onto Kurt, wishing Kurt was INSIDE him. The thought made him choke on a moan and rock himself back harder. One of Kurt's hands hooked on Blaine's shoulder, his head coming down to rest between Blaine's shoulder blades. Kurt's other arm wrapped around Blaine's abdomen, clutching tightly.
Fingers dug into his skin, well manicured nails pressing perfect crescents into his skin. Kurt's fingernails always clawed at Blaine when the younger boy was getting close, and his face always got so flushed and the hinge in his jaw seemed to stop working well enough for Kurt to shut his mouth.
He couldn't see Kurt's face like this, all that met his eyes was a pillow.
He wanted to see Kurt's face. Blaine whined low in his throat as Kurt thrust harder and faster, almost abandoning his rhythm. Kurt was close and Blaine couldn't see his face. Like it had roots the thought dug into his brain and grew, fast and furious, taking over his thoughts ridiculously fast, until it was almost like he was two people. One experienced the toe curling sensation of Kurt's thrusts, the other clawed at his skin and demanded he turn around and cling to Kurt so tight they'd never be apart again.
When Kurt finally came, mid thrust so his come painted the inside of Blaine thighs and some of his ass, Blaine's heart didn't know whether to sink or soar. Half of him was close to the edge, the other didn't care one bit about orgasming, merely interested in finding a way to crawl into Kurt's skin and live there forever.
Kurt collapsed against his back, draping himself all over Blaine so they were touching almost everywhere. It wasn't enough; he wanted to see Kurt's face. He didn't dare move though, afraid to lose even this contact.
Eventually though, Kurt found the will to move himself. As Kurt's skin left his he whined pitifully, heart aching in his chest. He guessed Kurt took pity on him or something, because the younger boy rolled him onto his back and snuggled into his side. "Did you come? Was that good for you?" Kurt asked, dragging fingers down Blaine's stomach and twirling them in his happy trail.
Blaine chanced a look down; he'd gone soft, ugly desperation curling in his stomach and ruining his hard on. "Yeah, I did." Blaine lied. "You were great." Kurt wiggled in satisfaction and snuggled further into Blaine's side. The action set loose the dam in Blaine's will; he wrapped his arms around his boy much too tightly.
Desperation ate at him, the suddenly clear urge to stay in that bed forever, wrapped up so tightly in his Kurt. HIS KURT. The possessive tone of his thoughts, the tone that had been building for a month, was perfectly clear now. There was a reason he couldn't stop his mouth for saying those intense things, a reason he couldn't stop touching Kurt even in public, a reason he had come to almost despise Finn's presence in the afternoons. He WANTED Kurt. He wanted his boy more than he'd wanted anyone before.
Blaine was a bit of an oblivious guy, he noticed big picture but was often lost on components, that coupled with his history of casual, non-serious relationships, he understood intellectually why it had taken him so long to see this. But... But how could he have mistake how STRONGLY he was drawn to this boy? How could he have missed this fierce feeling growing inside of him?
Kurt smushed his face into Blaine's neck, contently allowing Blaine to cling to him like a limpet.
He'd been leading this boy on, too scared to let him go and too stupid to hold him properly. Blaine tightened his arms just a bit more, relief at finally having a name for the feelings swirling inside him mixing with the confusion and anxiety over what he should do now.
"I'm sleepy now, Blaine. Wake me up later, I want to take you for coffee," Kurt mumbled against his chest.
Blaine closed his eyes and forced his thoughts away. Right then he had his boy in his arms, he could figure out what to do later, when he was alone on his air-mattress. "Sounds great, Kurt." Blaine struggled to grab Kurt's phone, the closest, off his nightstand without disturbing the boy. When he had achieved victory, even grabbing a few tissues to clean them up, he set an alarm for an hour, wiped away Kurt's come, and then rolled himself into the boy, determined to just hold onto Kurt as tight and as long as he could.