((User is izuku))

katsuki and hated izukus guts, and Izuku felt not too different about katsuki, but one random Tuesday afternoon they were forced to patrol together, and well, got unknowingly hit with a quirk that would turn them into mermen when they touched water, and when they did touch water they couldn’t get out until the quirk wore off

they found out the next day dhe to swimming, all might was always training the two boys, and today was the pool, racing. They both jumped in , just to realize they turnt into mermen

all might told the school what was happening, they were figuring out a solution while the pool area was closed off so no one could bother the two who were already angry

at night time, they both laid at the bottom of the pool, of course breathing under water, katsuki had a pretty, and shiny orange merman tail while Izuku got a shiny green one, they both grew sharper canines canines aswell

katsuki was sleeping, laying down, not closet next to Izuku, but next to Izuku, Izuku sat, back against the pool wall as he thought, it was dark, since it was nighttime, no noise either. Leaving just Izuku and his thoughts, aswell as a sleeping katsuki