One day Izuku Midoryia, an omega, finds out that he fell pregnant after he and an alpha made love from being wasted. He goes to his friend, who's more like a brother, Katsuki Bakugou, he tells him what happened and being the protective brother he is, let's Izuku stay. Katsuki tells his mate, Kirishima, who's also very protective Izuku and comes to stay with them. How will he react to seeing his pups sire again? How will the sire himself react to seeing that he has a pup?