The Second Generation

Chapter 1: The past

(A/N before this story starts disclaimer Rin calls Shinso mom only for the reason that I think calling one of his dads daddy is creepy... so yeah no physical change to Shinso he's still a male Rin just calls him mom)

Bakugo and Kirishima where UA's it couple. Everyone adored them and thought that they would last forever. The two started dating shortly after the sports festival. During this time Mineta was kicked out of class 1-A for a poor performance and Shinso took his place. At first, he and Bakugo did not get along, but eventually, the two's personalities aligned more than they initially thought and after that they quickly became friends. The three hung out a lot over that past year and became very close. When Bakugo got kidnapped by the league of villains it was Kirishima and Shinso who went in to save him. As Shinso and Bakugo's friendship grew, Shinso started to realize that he liked Bakugo more than a friend. Bu the couldn't do that to Kirishima, so he decided he would keep his affections for the hot-headed blonde a secret. After graduation, Kirishima and Bakugo decided that they wanted to move in and have a child together. While this decision may have seemed rushed, the two had been together for three years and felt ready for such a responsibility. So they went to a doctor with a love child quirk, this doctor only needed DNA from both parents, this could come from anywhere and his quirk would allow him to mix the two together and then incubate the mixture for nine months. After that time period, he could produce a child. Once there child was born however Kirishima and Bakugou started to fight about how to properly parent there child after he got his quirk. Bakugo wanted to train him very vigorously on top if his UA course load. He claimed that it would help their child grow up to be strong and determined to be the number one hero. Kirishima, however, believed that encouragement was necessary, but not the vigorous training Bakugo had in mind. He believed that putting a child through such stress could be damaging. Bakugo didn't know what to do with himself so every time they fought he went to Shinso. After the fighting got to be too much Kirishima and Bakugo decided that they didn't want to raise a child in an environment where they fought all the time, the two broke up and decided to stay friends. It was the hardest decision the two ever had to make, but they knew it was for the best. Kirishima would take there newborn son Iwa and Bakugo would go and see him on the weekends. In the meantime Bakugo was struggling,  he couldn't believe that he, in his mind, ruined a seemingly perfect relationship. All because he and Kirishima couldn't agree on how to raise there son. He blamed himself for not thinking things through. Why hadn't he and Kirishima agreed on how to raise there child before he as born? Why hadn't he been smarter about this? Why hadn't he tried to compromise with Kiri? Throughout all of his self-doubt and confusion, there was Shinso. He had been there for Bakugo and listened to him swear how if he ever found love again he'd do it right. He'd talked about how he and his partner would raise their child before they were born and how he wouldn't ruin another relationship. At this point, Shinso's innocent high school crush had grown into a full-blown love for Bakugo. Once the separation was final Shinso couldn't take it anymore and a month later confessed his feelings for Bakugo. Knowing it was sudden he didn't except Bakugo to react the way he did, but surprisingly Bakugo not only accepted but also reciprocated his feelings. Bakugo had started to get feelings for Shinso in his senior year at UA but ignored them because, at the time, Kirishima was his future and he believed that. But with his newfound love came hope for a new future and a year later the two were married and had a child of there own. Once there child was born Kirishima started to worry about the children's future. What if Shnso and Bakugo's child resented his and Bakugos? What if the two did nothing but fight over there shared father? What if one felt more unloved than the other? What if the two half-brothers only despised each other? These potential problems lead to Bakugo, Shinso, and Kirishima agreeing to never tell Bakugo's second child Rin, about his first child Iwa. Bakugo was true to his word and saw Iwa every weekend and spend time with Rin during the week when he wasn't doing hero work. But the problem was Bakugo was the number two hero so he was always busy and the amount of time Rin got to spend with his dad was quite slim outside of quirk training. Shinso didn't mind staying at home to raise Rin by himself...until he got his quirk. One day while Shinso was in the kitchen making dinner for his family he heard a loud 'boom' noise. Now normally this wouldn't be an odd occurrence living with Bakugo but he wasn't home at the time. 

"Rin!" Shinso called out in a concerned voice as he ran out of the kitchen. He turned the corner into the living room to find Rin with there cat, Nightshade standing on his hind legs. 

"Look mom I made the cat stand up!" Rin said gleefully. Shinso was shocked he was wondering where the explosion had come from until he saw a burn mark on the cat. 

"Rin baby, how did you make the cat do that?" He asked not wanting to scare the young boy. 

"Oh well, I'll show you." He then broke his gaze from the cat and Nightshade fell back on all fours but before he could run away Rin let out another small blast from his hands, just barely touching the cat. Shinso watched as Nightshades eyes glazed over and Rin said, 

"Stand up." and the cat did. 

"You got your quirk!" Shinso shouted in a happy voice. Rin smiled at his mom before releasing the cat form his quirk. An hour later when Bakugo came home from work he learned of his son's quirk. 

"Can you control people, buddy?" He asked Rin shrugged, 

"I don't know," Bakugo smirked, 

"Try it on me." Rin looked to Shinso for reassurance and he nodded. Rin raised his hands to his dad and let out a blast. Bakugos eyes glazed over and he held still. 

"Now what?" Rin asked Shinso, 

"Make him do something he wouldn't normally do so you know you're controlling him." He suggested. Rin smiled and said, 

"Dad go pick up the cat." Now Bakugo didn't hate the family cat but it wasn't his favorite thing ever either. Bakugo picked up the cat and Shinso told Rin to release him. He did and once Bakugo came back into control he smiled at his son. 

"You can control people and animals by blasting them with explosions. We're going to start training every day from now on ok?" Rin nodded but Shinso wasn't so sure. I mean they agreed they'd start training him as soon as he got his quirk but, Rin was the first one out of everyone in his grade to get this quirk. Maybe it was too early, but Shinso knew there was no persuading Bakugo. He wanted his son to be the number one hero and as long as that's what Rin wanted Shinso wouldn't argue.