Deku's Harem (слэш)

Deku was an alpha.
That in itself was strange, but not only was he an alpha, he was a different kind of alpha. Kind, caring, sweet...And with a dick that made Katsuki see stars and the stamina that would make olympic athletes green with envy. Problem is- Deku is too much for one omega to handle. Solution?
Bring another on board.
Notes:
*Can be read alone
*Please read the first in the series