Kurt knocks lightly on Blaine's door, seeing him lounging on the bed, kicking his feet aimlessly at the air, and his eyes rake greedily over the skin of his back exposed by his rucked-up shirt, his hair loose, the birthmark of the back of his neck that Kurt wants to mark up over and over, leave a bruise lingering for days and show that Blainebelongsto him. He grins when Blaine looks up, and his entire face lights up like a firework display when he sees Kurt. "What are you doing here?" he asks cheerfully, springing up and crossing the room quickly into Kurt's arms, pressing a soft kiss to his cheek.

"Do you know yet?" Kurt asks desperately, unsure of whether he wants the answer to be positive or negative, whether he wants to have to let Blaine go or keep him in his arms for a little longer without knowing if he'll get to ever meet a baby with his and Blaine's features mingled in perfect harmony.

"I like to wait a week before I take the test, and it's only been five days," Blaine says softly, brushing a kiss against the line of Kurt's jaw, hands sliding a little lower on Kurt's back, fingers teasing at the waistband of his jeans. "So no, I don't know."

"Maybe we should just try again," Kurt whispers teasingly, brushing his fingertips against Blaine's neck, making Blaine shiver in his arms. "Just to give us a better chance of you getting pregnant." Blaine nods and spins out of Kurt's arms to shut and lock the door, eyes on Kurt dark and smile brightly hopeful as he beckons Kurt close.

Blaine's hand scratches up Kurt's back beneath his shirt, one leg hitched high around his waist as Kurt presses him back against the door, arms tight around his slender waist and holding him close, gliding a hand up Blaine's side to tug desperately at his own tie, working it loose and pulling it off before popping open the buttons on his shirt, shrugging out of it and smirking at Blaine's groan of frustration when his eager hands encounter undershirt instead of skin.

"Bed," Blaine murmurs, breath punctuated by a desperate moan as Kurt lifts him easily into his arms and crosses the room with Blaine's lips frantic on his and Blaine's legs wrapped around his waist, tipping him onto the bed and tugging his shirt up over his head.

"I haven't stopped thinking about you all week," Kurt says between frantic kisses, reaching down to tug his shoelaces loose and kick the shoes away, working their jeans open when his hand trails back up the outside of Blaine's leg. "I can't stop thinking about the noises you made and how gorgeous you looked spread out underneath me and how you blushed when I kissed you and how amazing you looked when you came. I want it all again."

Blaine trembles desperately beneath him, craning up to pull him down for another kiss, breaking away only long enough to pull Kurt's undershirt back up over his head and throw it to the ground before kissing him again, smiling at him with his eyes swirling dark. "I want you so bad," he whispers through a moan.

Kurt nods as he leans down to kiss him again, sliding his tongue into Blaine's mouth and rocking with him, sliding first his jeans then Blaine's down as far as he can, giggling as Blaine flails his feet around to kick them off. "You are adorable," he says against Blaine's lips, smiling into the kiss.

"Because that's what a guy wants to hear when he's mostly-naked in bed with someone," Blaine teases, and Kurt just giggles again, nipping at Blaine's jaw as Blaine's hands slide beneath his boxers to curve over his ass, his toes hooking into the waistband to push the underwear away as he guides Kurt's hand to his hip. "Kurt, please, take these off, I want you, Ineedyou."

Kurt kisses him, sliding his underwear down and pushing slowly into Blaine, gasping out once he's fully-sheathed, a half-utterance of Blaine's name and soft, "Ohfuck." Blaine smiles up at him, eyes dazed and pupils swollen black, and he looks so utterly blissful, hovering on the edge of loving, that Kurt feels his heart clench in his chest and his stomach tingle and his heart soar, because he's falling for Blaine, right here in this bed, surrounded by slick heat and Blaine's moans echoing prettily in his ears and Blaine's fingers composing delicate symphonies on his skin.

Blaine's hands scrape down his back, nails raking raised red lines into his sweat-slick skin, and curve over his ass to jolt him forward, and both of them moan, Kurt slowly starting to pick up a rhythm with his thrusts, kissing Blaine in an attempt to muffle his cries of pleasure until Blaine shakes and comes, moaning out, "Ku-urt!" into Kurt's mouth, and Kurt follows him just a minute later.

"I can't stay," he says, sitting up and reaching for his clothes, Blaine still breathing heavily, lying still and sated and pliable in the bed, smiling sweetly at him. "But you are amazing. Every time I'm with you is amazing. You are the most perfect man I know." Blaine grins, a flush nestling high in his cheeks, and pulls him close to kiss him hard before Kurt leaves, lips bruised and his undershirt and boxers balled up in his pockets.

He waits two days. He thinks about Blaine, beneath him and all around him, whispering his name reverently, with his hand on himself in the dead of night. In the day, he thinks of Blaine waiting to know whether he's pregnant, thinks of how he'll have to let go of Blaine if he is pregnant, give up those daydreams of a family life, because of the stupid contract, because they found each other under these circumstances.

And he can't wait. He goes back to the centre, and he finds Blaine sitting stiff-legged on his bed, hands beneath his thighs, and his eyes are wet when he looks up to meet Kurt's. Kurt clears his throat and Blaine stands, crossing the room to be closer as Kurt asks, "Are you-"

"I'm pregnant," Blaine says softly, and Kurt exhales shakily, blinking back the tears stinging at his eyes, and wraps his arms around Blaine, hugging him close. A single tear slides down his cheek and falls into Blaine's hair, and Kurt clings to him, not wanting to let go, even though he knows he has to.

He's in love with Blaine. The first time he's found such a beautiful, intimate, wonderful connection in years and he has to let it go because of the way they met. He can't possibly let Blaine go.

But he has to.