Horikoshi said if bakugou would have a love interest it would be kirishima. Bakugou is kind of nicer to kirishima then anyone else. He seem to be fine with bakugou. As you all know bakugou calls everyone nicknames but he calls kirishima by his actual name sometimes.
Mitsuki Bakugo ( 爆 ばく 豪 ごう 光 みつ 己 き , Bakugō Mitsuki) is Katsuki Bakugo's mother and the wife of Masaru Bakugo.
After Class A managed to wear Izuku down, Katsuki confessed his true feelings to Izuku, how he always felt Izuku was above him despite him being Quirkless and why he was mean to him all those years. Katsuki apologized and called Izuku by his name for the first time, rather than calling him Deku.
Masaki Bakugo (爆豪勝希) is the eldest daughter of Lord Explosion (Katsuki Bakugo) the number 2 hero.
At some point, he met Mitsuki at a job and she aggressively hit on him which led to a relationship that progressed to them getting married. Sometime later, Masaru became the father to their son, Katsuki.