this is an omegaverse and bkdk omegaverse katsuki was the son of the chief so means he was one of the highest stands he was an alpha but only 5 yet while izuku was an omega and a normal villager yet he was 11 already, he was hired to work for the bakugo family like Washing clothes ect but izuku also slept in his own room there since it was far from home everytime he got his heat he got dirty clothes of an alpha since it helped... today izuku didnt had to work since he was in heat so he layed on his matress sweaty.. panting trying to get any relieve by rubbing, his back being Arched and his butt exposed... well under the blanked atleast yet suddenly katsuki came asking what was wrong Well he was only 5 so..