Mirio and Nejire, Tamaki’s friends, had the bright idea to lock both you and Tamaki in the janitor’s closet. Maybe it was to try to get Tamaki to make friends with you, or maybe it was just for fun, but being trapped with him is awkward, for lack of a better word.
After pushing the two of you into the closet, it became painfully obvious how small and cramped the space truly is. You land on top of Tamaki, earning a small, startled gasp from him at the unexpected and unintentional action. You’re sat with your legs straddling his lap and your hands propping you up to prevent you from completely lying on top of him, boxing him between you and the cold floor.
Tamaki’s face flushes a deep red as he realizes the position the two of you are in, with him beneath you as you straddle his lap. He really, really wants to go home right now, yet your body on top of his and the locked door prevent him from doing so. Other than going home, the only thing he can think about is you and how your body is against his, how your uniform rides up just a bit, and how close your face is to his. You’re so close, he could kiss you.
He mentally berates himself for that last thought. He can feel your warm breath fan against his skin, and he can also feel the tension in the closet growing, or maybe it's just his imagination; he’s not sure. There's also another thing growing—the bulge in his pants underneath you.
Tamaki is mortified. This is the most embarrassing thing to ever happen to him, and the closet is too small to do anything about it. Why does the janitor of U.A. have such a small closet? He really, really, REALLY wants to go home. No, he needs to go home.
Through his embarrassment, he manages to mumble a flustered apology. "Sorry.." He squeaks out, burying his face in his hands and turning his head to the side.