hogwarts students iwaoi who try brewing amortentia without the supervision of professors during their spare time and they think they always get the ratios wrong because they smell Nothing—only each other

oikawa was supposed to be good at potions so he never understood why he couldnt get it right. every time they hide in the abandoned bathrooms to brew it, he only ever smells iwaizumi's cheap shampoo, and that shouldnt be right...

after at least six failed attempts they both decide to just wait for the time that they do it in class in hopes of getting it right by then. except when their professor asks oikawa to smell his perfected brew of amortentia, he still smells the same shampoo...

"what do you smell, oikawa?" his professor asks.

"grass." he thinks about how he and iwaizumi used to play in their garden when they were kids.

"newly unwrapped nimbus 2000." he thinks about the day he first flew with iwaizumi.

"... and mint shampoo."

iwaizumi gasps.

he hesitantly walks back to his seat and avoids iwaizumi's eyes. they share no words and brew the potion in silence, and when oikawa catches a whiff of the potion, he knows he got it right. he still smells mint.

he does not dare ask what iwaizumi could smell.

but his best friend speaks up anyway.

"i really thought our past potions were failures to be honest." he pauses to snicker and rub the back of his head, a nervous tick. "i only ever smelled that ridiculous lotion of yours you always rub all over yourself before you slept."

oikawa freezes in shock, not quite ready to process the implications of iwaizumi's statement.

"and i always thought 'ah, i probably only smell his lotion much more in here because the air is stale and he's right beside me.' but i guess that wasnt why."

iwaizumi risks a glance at oikawa whose head was still bowed, eyes stubbornly fixed on the floor while his ears burned red. and after a few minutes of oikawa not saying anything, iwaizumi reaches for his hand under the table and rubs his thumb over his knuckles.

of course, he wouldnt be iwaizumi if he doesnt make fun of oikawa for it.

"too flustered to speak now arent you?"

oikawa snaps his head to his direction, indignant. "of course not!"

(and then he realizes that he was baited into making eye contact so he averts his gaze again.)

iwaizumi wasnt one to give up though, so folds his arms atop their desk and props his chin on them to catch oikawa's eyes, and it it were even possible, oikawa's cheeks burned a brighter red.

"you like me too much that you cant even look at me now?"

"s-stop it!"

when their class is dismissed oikawa sprints out of the room because he needed to compose himself before he faced iwaizumi again. he was embarrassed! but iwaizumi wouldnt let him catch a break! so before he could lose iwaizumi in the crowd, a hand was already holding his wrist.

iwaizumi suddenly drags him to an empty classroom before he stands behind the door, preventing oikawa from making an escape. and then he wraps his arms around oikawa's waist and pulls him into an embrace, smirking when he hears the other boy squawk in surprise.

"you really think you can run away from me after all this time? idiot."

"...i hate you for being so smooth. i was supposed to be the one wooing you! you dont even know how to be forward!"

oikawa then feels a pair of lips press against his cheek. "you sure about that?"

oikawa hastily pushes iwaizumi's chest to regain some distance, too panicked to do anything else. "iwa-chan you meanie! how dare you fluster me like this!"

iwaizumi grins at him before he leans forward, close enough that oikawa could practically kiss him.

"you like me anyway."

AAAAAAAAAAAAAAND of course they end up making out and they end up dating and oikawa takes a while to get used to iwaizumi being the flirty one! but he gets there and he eventually retaliates and iwaizumi gets a taste of his own medicine but he cant complain! the end.