Kurt thinks; he thinks about how the situation makes him feel now that he knows Blaine was jealous. How Blaine's arms protectively found his waist and the fire in his eyes was because someone was flirting with his boyfriend.
Before Kurt does what he has to do next, he feels like he should make something clear to Blaine. "The way you acted was not okay, but it was so, so hot."
With that, he closes the rest of the gap between them, Kurt's mouth landing hard on Blaine's. Blaine gives a muffled gasp before he gets the idea, kissing Kurt back with as much passion as his lips demand. Their tongues dance together; there's no rhythm, none of the careful ways in which Kurt is used to kissing - at least not sober. It's dirty and filthy and turning Kurt on so much.
They somehow stumble backwards towards the couch, Blaine's knees hitting it first and Kurt falling after him. Kurt straddles Blaine; he can feel himself getting hard, but his jeans restrict him from touching his boyfriend at all. Cursing his need for oxygen, Kurt comes up for air and takes greedy gasping breaths, his chest heaving like Blaine's beneath him.
"You liked it?" Blaine teases before his mouth locks on to Kurt's neck. Kurt's witty reply is lost in the sensation; if he thought he enjoyed this when he was drunk, it was a million times better now he was sober. "Your neck is so sensitive," Blaine whispers, only pulling back a few centimeters. He sounds fascinated and happy with the discovery. The feeling of Blaine's warm breath against Kurt's cool, wet skin makes the heat low in his belly burn.
He makes a needy noise somewhere in the back of his throat before he clumsily scatters off of Blaine to lie down on the space on the couch. He pulls Blaine on top of him - it's awkward, but they somehow make it work, lost in the passion of kissing each other as they both shred their jeans.
Blaine doesn't say anything, but the silent questions are there: are you sure this is okay?, are you ready for this?. His eyes are wide and careful as they study Kurt's face. There's a still moment, with Blaine hovering above him; even though Kurt is desperate for something, anything, he keeps quiet knowing this is important. But then finally, finally, Blaine's body is on his; his lips first, the rest following after. The initial pressure of Blaine's thigh against Kurt's achingly hard cock draws a long, deep moan out of him, and he feels Blaine smile against his lips.
"Love you," Blaine says. He works a hand between them and shifts his hips so he can cup Kurt through his underwear.
"Oh my god..." Kurt breathes. No one has ever touched him like this before; even through the fabric it feels like too much. But Blaine's next words almost knock the air out of his lungs.
"Can I - I want to suck you."
Before Kurt even realizes, he's nodding frantically. "Please."
Blaine gives him the sweetest smile and palms Kurt a few more times, seemingly enjoying the breathy moans he receives in response. Blaine then trails his kisses down Kurt's neck, his hands making quick work of undoing the buttons of Kurt's shirt before continuing his path of kisses south. He looks up at Kurt, one last need for reassurance before he takes off his underwear. Kurt manages a smile, his skin feels on fire from Blaine's touch, and he nods once.
He lifts his hips slightly to make it easier for Blaine to remove the offending item of clothing, and he watches as Blaine's eyes go wide as he stares. Kurt tries not to squirm under his gaze; he's never been naked in front of anybody else before, and what if there's someone wrong with him... what if Blaine doesn't like what he sees -
"You're gorgeous."
It's the only warning Kurt gets before Blaine moves his body lower and suddenly Kurt is enveloped in a wet, hot heat. He gasps harshly and his eyes fly to his boyfriend. Blaine's lovely pink lips are stretched wide around his cock and his eyes are trained on Kurt. It's all - everything is too much and Kurt's head drops back on to the arm of the couch and his eyes clamp shut. He can't watch this; the feeling of being inside Blaine's mouth is enough alone, there's no way he's going to last long.
His hands reach for Blaine's hair and he tangles his fingers in the curls. He can feel as Blaine bobs his mouth up and down, and instinctively, Kurt's hips push up.
"I-I'm sorry," Kurt rushes out, his voice almost unrecognizable and words hard to remember.
But Blaine doesn't seem to mind. Kurt opens his eyes and watches as Blaine pulls off of him slightly, licking a long strip of the underside of his cock as he goes. Kurt chants a mixture of curse words and Blaine's name over and over, and his eyes fall back shut as Blaine takes him in his mouth again.
"I can't... I-I'm going to..." Kurt can't finish his sentence, he tries to warn Blaine that he's going to come but it doesn't make Blaine stop his movements and sucking. If anything, he only increases his efforts.
Blaine takes Kurt all the way into his mouth until he hits the back of his throat and then he swallows. It's all Kurt can take and with a wordless shout, his orgasm hits into him and he comes into Blaine's mouth.
It's while before he can move; before he can register anything around him. His brain is mush and oh my god. He feels a hand cup his face and he blearily blinks his eye open.
"Hey, are you okay? I think I lost you for a second." Blaine's voice is raspy but caring as he tries to fit in the small space left between Kurt and the couch.
"I love you," Kurt says, coming back to himself a little bit. "And not just because of the mind-blowing orgasm."
Blaine chuckles next to him. "Enjoy that, huh?"
Kurt swats at him; Blaine's sounds all too pleased with himself, but Kurt can't really blame him. "Wait, but - what about you?"
"Don't worry about me," Blaine says, and Kurt looks at him, ready to argue. "Really, Kurt, the noises you were making." Kurt blushes. "How do you feel about a nice warm relaxing bath followed by a lazy movie night?"
"That sounds perfect."
"So, who is Eric, anyway?"
They've just finished the second film of the night as it's getting dark outside. The skyline lights up as the sun descends and Kurt snuggles closer into his boyfriend. Blaine sighs, almost as if he was expecting the question but didn't want it to come anyway.
"I know him from NYADA, he was in one of my classes and he always had to do one better than me. Then there was the time I caught him making out with my then boyfriend at this dumb party, so yeah."
"Oh, Blaine. I'm so sorry."
"It's good, I - it hurt today thinking that he was trying to take something else from me. Not something else - you. I love you so much."
"I love you, too," Kurt says as he leans in to kiss Blaine. It's chaste; just lips against lips, but it still makes his whole body feel like it's vibrating. He loves the way Blaine's eyes are always closed and he has a small smile on his face as they break away.
"What movie next?" Blaine murmurs quietly.
"How about -" Kurt starts but he's interrupted when Blaine's phone starts ringing. Blaine gives him an apologetic smile and looks down at his phone and groans.
"I should probably take this," Blaine says, hitting accept. "Hey."
Kurt can't make out what the person on the other end of the phone is saying, and he tries not to invade Blaine's privacy.
"You are?" Pause. "Oh, they do?" Pause. "When?" Pause. "How'd you hear about that?" Pause. "Saturday? Fine. We'll be there."
Blaine doesn't look too happy when he clicks off the phone.
"Are you okay?" Kurt asks gently.
Blaine rubs the back of his neck. "That was my brother. How would you feel about... meeting my parents?"
"Oh." Kurt replies dumbly. Blaine's parents. Which means Helena Anderson and Simon Anderson and Cooper Anderson. "Of course, that would be - fine."
Blaine hums in agreement, not sound too enthusiastic about the idea.
"Do you... not want me to meet them?" Kurt asks.
"No, no. It's not that at all. My parents, Cooper, they're a lot to take and I'm not too thrilled with the thought having to spend my time sharing you with other people."
"It'll be fine," Kurt reassures.
Blaine kisses him again, smiling gratefully, and gets up to put the next movie in.