sibling situations. oikawa tooru ( f!reader )

“Tooru!” You called, speed walking down the hall towards your brother’s room. This was the fifth time he’d snuck into your room while you were sleeping to retrieve your precious hair styling tool. As an older brother, he thought taking your things without asking should be considered a privilege.

You looked up to him. You really did-- but he never failed to send a vein bulging from your neck.

The door slammed open as you burst in. Eyes dangerously flickering to the adjoining bathroom in his room, you cleared your throat in an obnoxious manner and cut off his upbeat humming.

Immediately, Oikawa’s head popped out from the bathroom. Only half of his head was styled with his signature waves. “Ah, good morning little (Name)-chan! Did you sleep well?” He said as always. “I’d give you a hug, but I’m sort of busy with my hair…” Then he went back to swooping the ends of his hair, clamping a piece of it in between the curling iron. The clutter of hair products on his counter made you shake your head.

Oikawa looked at you from the mirror, visibly happier. You, on the other hand, were none too happy to see him in his alien-print boxers. Stomping towards him, you extended a hand, peering up at your brother. “Give it back,”

 “Just a little longer, (Name)-chan! I won’t steal yours ever again after I get a new one. Pinky promise!”

“You only have half of your head done, though!” You complained, aggressively gesturing towards his hair, which looked absolutely ridiculous. One side was matte and frizzy against his face, while the other was voluminous and wavy. You wondered if his fangirls knew his hair was naturally straight. Maybe if you snapped a picture of him now you’d be able to sell it for a lot...

He only laughed, continuing to curl the tool up in sweeping motions, skillfully spraying products with his other hand all the while.

“Please, we’re going to be late! I’m sure girls will still fawn over you.”

“Naturally!” He beamed down at you, just about to ruffle your dishevelled hair when he stopped. “Gosh (Name)-chan, your hair is a mess!” He exclaimed, suddenly aghast. “I can't let my little sister go to school like that. Let me fix it for you—“

You cut him off with a groan, deftly reaching and snatching the curling iron from his hands. The plug popped from its socket as you yanked the cord out. Before he could register what happened, you bolted out the bathroom and down the hall.

“Wha—“ Oikawa’s mouth dropped mid-sentence as he watched you scurry off, lips dipping into a pout. “(Name)-chan!”

As you entered your room, you whipped the door shut and locked it. Catching your breath, you smirked triumphantly, plugging the hair curler in. You then peacefully resumed your morning routine, ignoring your brother’s muffled whining and constant pounding from outside.

In the end he didn’t want to risk being late, and was forced to go to school with half-styled hair.

“Damn it, Kusokawa.” Iwaizumi relentlessly spat at his bestfriend, “It’s not wacky hair day yet!”