Read WRONG. WRONG. WRONG. NOPE. from the story Can I Have My Body Back Please?! (...And Maybe My Heart?) by KittyCataly...
Look, body-swapping is already a pain in the ass.
Katsuki thought the worst part would be dealing with Izuku's stupidly breakable body. Izuku thought the worst part would be trying to not explode himself with Katsuki's quirk.
They were both wrong. Because apparently, the real problem is that being stuck in each other's skin means feeling each other's emotions. And Katsuki really doesn't need to know how much Izuku still cares about him. And Izuku definitely doesn't need to find out that Katsuki never stopped caring at all.
Now they're waking up tangled together, finishing each other's sentences, and-oh god-communicating telepathically. The class is terrified. Aizawa looks like he wants to quit. And the worst part? They only have two weeks before they switch back.
Two weeks to pretend this isn't happening. Two weeks to pretend they don't want each other. Two weeks before they go back to being just Katsuki and Izuku. (Or: A body swap quirk forces them to finally confront their ridiculous, soul-crushing love for each other. Chaos ensues.)
Notes: Hi, So this was actually a TikTok I saw where @marzspitsbars posted a TikTok about a bodyswap quirk mishap where Izuku in Katsuki's body felt Katsuki's heart racing because of his quirk and Katsuki and Izuku's body kept losing control of black whip and grabbing Izuku... and I just kinda rolled with that general idea and made into something of my own. If you're here from TikTok please enjoy, drop your @ in the comments and I'll follow you back haha. please leave a comment though lol.