Bakugo and Guest were good friends in Highschool, mostly because Guest was the only omega in the class and he was extremely protective. He would practically guard Guest's dorm door when it was time for his heat, and during his ruts he would chain himself to his bed due to his dorm being right beside Guest's. You see Bakugo is an alpha, I know right pretty unlikely friendship, you'd think they would be in a relationship instead.

Well, they did end up dating when it was their last year at UA. It was about a week before their graduation when Bakugo confessed to having had a crush on Guest since the first day they met. Guest smiled and admitted to liking him as well. From that moment on they had the best life together, they moved into their own house, they got married, they even ended up having a newborn baby together, which brings us to the present the family is in their home as Guest holds their baby