A/N: This is just a little one-shot I wrote while I'm trying to clear my head. Kurt goes to Sebastian's dorm room at NYU and is overwhelmed by a powerful smell of cologne that's not Sebastian's, and Kurt's afraid Sebastian's friendship with Hunter is turning into something more. (Inspired by anon prompt 'Seb smells like someone else's cologne, and by Nolan Gerard Funk's hot Versace photo shoot.) Warning for language. Futurefic, college AU, angst, romance.

Kurt walks into Sebastian's dorm room and is immediately knocked backward by the horrendously powerful smell.

"Oh dear God! Kurt exclaims, "What the fuck is that…"

Kurt walks into Sebastian's bathroom and stops at the gorgeous sight of his delicious boyfriend, shirtless, bent over the sink splashing water on his face and neck. Kurt smiles, eying the discarded Ralph Lauren polo hanging over the shower curtain rod. Sebastian doesn't seem to notice Kurt over the sound of the water rushing from the faucet, and before Kurt wraps his arms around his boyfriend's waist he takes a moment to pull down the shirt and give it a sniff, searching for the scent of Hugo Boss that Sebastian wears to cancel out the stench that seems to be omnipresent in the whole dorm room.

Kurt bunches the material beneath his nose and inhales deep.

He chokes on that same overpowering odor. It's strong; so strong it makes Kurt's eyes water, but now that it's inches from his nose Kurt realizes it's also familiar.

Sebastian turns off the water and turns from the sink, reaching for a towel hanging behind the bathroom door. When he sees Kurt standing behind him with the polo pressed beneath his nose, Sebastian smiles, reaching past his boyfriend for the towel on the door and kissing him on the forehead in the process. Kurt's eyes flick up and his eyes widen at the sight or a red bruise blooming on Sebastian's neck.

"I'm sorry I didn't meet you downstairs like we planned, babe," Sebastian mutters, his response muffled by the towel he uses to pat his face dry. "But I had sort of a clothing crisis."

The color drains from Kurt's cheeks as everything clicks into place. This putrid scent churning Kurt's stomach is that same cologne Hunter's been bathing in for the last six weeks since he scored his Versace modeling contract. That stupid contract has been the only subject of conversation in their lives ever since Hunter made some offhanded comment about wanting Sebastian to be his financial advisor, a concept Kurt considered premature considering Sebastian still had two years left in his Master's program at NYU to complete.

Kurt tried to push it aside, tries not to get too annoyed (a word he prefers more than 'jealous' which he absolutely is not) when Sebastian cancels their lunch dates to go to business meetings with Hunter and his agent. He swallows his pride when Sebastian gushes about Hunter's new success. Kurt knows that Hunter and Sebastian have been friends since their days at Dalton, but lately they're nearly inseparable.

Now things have obviously changed, and the evidence is getting darker and spreading all over the side of Sebastian's neck.

"Kurt? Are you okay?" Sebastian says, putting a hand on Kurt's shoulder and staring with concern into his watery blue eyes. "There's something important that I wanted to tell you…"

"You mean that you're having an affair with Hunter?" Kurt snaps, tossing the shirt angrily into the shower.

Sebastian steps back, jerking away from Kurt, stunned.

"What…"

"Don't try to deny it!" Kurt screeches. "I smell him all over you!" Kurt scrunches his nose in disgust as he catches another whiff of the pungent cologne.

"What…" Sebastian stutters out again, unable to put together a coherent sentence while Kurt rails on with his accusations, tears starting to run down his cheek.

"You spend all your time together…"

"He's trying to help me get an internship!" Sebastian finally manages to get in edgewise.

"Really?" Kurt sniffles, putting his hands on his hips. "Does part of getting you an internship include sucking on your neck?"

Sebastian shakes his head, his hand automatically reaching up to cover the red bruise.

"Not remotely bi-curious, my ass," Kurt barks.

"That's…that's just a rash," Sebastian insists, "from that awful cologne he's always wearing."

"That's the most ridiculous thing I've ever heard," Kurt scoffs, wiping hot tears from his cheeks with shaking fingertips. "Don't treat me like I'm stupid!"

"Then stop acting like it!" Sebastian shouts, stepping into Kurt's space, nearly nose to nose with his unreasonable boyfriend.

Kurt gasps, and with barely a thought, slaps Sebastian, slaps him hard enough to send him flying backward into the sink.

Sebastian puts a hand to his stinging cheek, his mouth set in a tight line, jaw clenched.

Kurt stares at the never before seen look of rage burning in his green eyes, and inside his chest Kurt starts to shrink away, frightened for a moment over how Sebastian might react.

"Okay, princess," Sebastian says with dangerous and spine-chilling calm, "you're coming with me."

Sebastian grabs Kurt's shoulders and spins him around before Kurt has a chance to react and run. Kurt tries to wrench out of Sebastian's grasp but Sebastian's hands are locked around his biceps like steel vices. Sebastian pushes Kurt along, out the door and down the hallway.

"Where the fuck are you taking me, asshole?" Kurt grumbles, but Sebastian gives him a shake and Kurt quiets immediately.

"I'm going to show you something," Sebastian growls behind Kurt's ear, leading him down the hallway and up a flight of stairs.

Kurt starts to feel more indignant as they approach a door he's seen way too many times for his taste lately.

"What? We're going to your whore's room?" Kurt says. "Sorry, but I'm not really up for a threesome. I've seen Hunter's pictures and I'm not as impressed as you seem to be."

"Can you shut your fucking mouth for just one second?" Sebastian asks. "Or do you physically lack the ability to stop talking?"

Sebastian stops in front of the door, releasing one of Kurt's arms to knock loudly. Kurt tries to take the opportunity to pull away, but Sebastian refuses to let him go.

The door swings open, and before another word is spoken Sebastian shoves Kurt inside and closes it behind him to contain the fog of cologne that emanates from Hunter's room. Sebastian doesn't even have to put his ear up to the door to hear Hunter's exaggerated voice basically yelling at Kurt.

"Hey, Kurt! Did you stop by to try the new smell? Of course you did! Everyone loves Versace. It's called Versace Pour Homme. I sprayed it on Sebastian earlier but I think he's allergic. Oh, did he tell you about the internship? He starts on Monday!"

Sebastian takes a few deep breaths to calm himself, listening to Kurt stutter polite apologies, trying desperately to find an out to the conversation and leave. The longer Hunter keeps Kurt trapped in his palace of stench, the more Sebastian finds himself slowly laughing. He sees the doorknob turn frantically left and right, hears it jiggle as Kurt tries to open the door, probably partially in an effort to breathe. Sebastian takes pity on his boyfriend. Kurt's suffered enough.

Sebastian opens the door with a huge smirk on his face.

"Sorry, Hunter," Sebastian says, wrapping an arm around Kurt's chest and pulling him from the room, "I have to take him back now."

"Sure thing," Hunter calls out. "See you guys later—"

Sebastian cuts Hunter off when he closes the door, not able to take another second of the Versace cloud that's threatening to kill them both. Kurt coughs into his fist, doubled over as he attempts to catch his breath. Sebastian watches him, schooling his face into a blank expression to hide his amusement at his boyfriend's agony.

Kurt takes in a deep, long breath through his nose, letting fresh air fill his lungs so he can stand up straight and figure out the best way to beg for Sebastian's forgiveness.

"I…"

"Yes, Hummel," Sebastian says, his voice dry and serious, but his eyes shimmering with laughter. "What is it?"

"I…" Kurt swallows hard, his eyes meeting Sebastian's glare. "I'm sorry."

"Excuse me?" Sebastian leans in, cupping a hand around his ear. "I didn't quite hear that."

Kurt sighs and looks down at his feet, red streaks coloring his face, a combination of embarrassment and near asphyxiation.

"I'm sorry," Kurt repeated. "I'm so, so sorry that I accused you of cheating. A-and I didn't even listen to your good news, and now Hunter ruined your surprise…"

Sebastian walks in close, crowding Kurt against the wall and kisses him, lips sliding against his with more tenderness than Kurt would have expected.

"I'm sorry I slapped you, Bas," Kurt whispers against his lips, Sebastian barely breaking away from his kiss.

"That's okay," Sebastian says, closing in to kiss Kurt again. "You're lucky you're so fucking hot when you get all possessive and mad." Sebastian moans into Kurt's mouth when Kurt's arms wrap around him, a hand trailing down Sebastian's back to squeeze his ass. Sebastian picks him up, wrapping Kurt's legs around his waist, and carries him back downstairs to his dorm room. "Maybe we can lock my door and you can slap me again."