Puberty for an Incubus Hurts in More Ways Than One

(Crossposted From AO3)
Though succubi were well-known and feared due to rumors of them only feeding off of sexual energy and feeding off people's life-forces, even if that was technically true in the very distant past, they lived rather normal lives and often only created other succubi or human boys. Very rarely did one ever create an incubus, happening once every three hundred years. Izuku was that incubus though wasn't born the healthiest.

Unfortunately, his puberty hit him earlier than expected. He went to bed early, pain hitting him as he got under the covers. When he wasn't ready for school the next day, his friend tried to see what was going on only to hear his muffled screaming as pain wracked through his hot body and his stomach felt like several broken bones all at once.

Aizawa was called, his room was entered, and he was rushed to the ER with fanged teeth latched tightly around the hero's capture weapon as he was wrapped tightly in his blanket.