Merman Bakugo

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Kirishima always loved the ocean. Which is why he goes diving anytime he can. So this is where Kirishima is, in the ocean looking at fish and coral. It's quite relaxing.

"Kirishima! You gotta get out of there. You are swimming towar.." The speaker systems cut out.

Kirishima was confused until he realized, he was swimming right in a current. Kirishima was getting pushed into unknown waters and the tank was about to blow.

Kirishima was freaking out, this could be his last moment alive. At least he died doing something he loves.

His vision was going black when he saw a flash of orange. He didn't think too much of it as he blacked out.

.

Bakugo was looking for a mate when he saw something in the current. The creature was beautiful. He pulled it out of the current and realized it was one of those sky creatures.

He found an underwater cave and put the sky creature in it. The creature wasn't breathing, which wasn't good if Bakugo wanted to mate with it.

He pushed down on its chest and stomach and water shot out of its mouth. That freaked Bakugo out and he jumped back into the water.

.

Kirishima woke up with a gasp. He's not dead? He looked around, he seems to be in an underwater cave.

Something grabbed his leg and he jumped. He looked to see, a human? He was in the water, all that he could see was his arm and face.

He slowly descended from the water and Kirishimas' eyes widened. He must have hit his head or something because this could not be real. There is no way there is a merman in front of him.

Kirishima started rubbing his eyes, when that didn't work he started hitting his head to see if this was a dream to wake himself up.

But when a webbed hand grabbed his hand to stop him, he knew this was real. "Don't hurt yourself." He had a deep voice. "I would be a shitty alpha if I let my mate hurt himself."

"M-mate? But I'm not your mate. I'm not even the same species as you, hell, I didn't even know merfolk existed until now." Kirishima was kinda nervous.

The merman growled. "Doesn't matter. You should be happy I chose you, lots of omegas want me. Now let's get this weird net off of you."

"Wait, this isn't a net, it's clothes." Kirishima tried but the merman was already ripping his diving suit off. He even took off his boxers.

The merman looked at him with curiosity. "You have weird tails, and you have a weird mating hole. The lips are different." The merman's dick started to peak out.

The merman grabbed Kirishimas' cheeks and spread them. "Hmm, there's no slick but your dick is out."

"That's because humans don't produce slick and my dick is always out, it can't just go into my body." Kirishima rushed out.

"It's fine, my dick can make slick if something like this was to happen." The merman's dick was fully out now and was moving towards Kirishimas hole.

Kirishima turned white. "Wait. If we're going to do this, at least let me prep myself first." The merman's head tilted.

"Prep yourself?"

"Yes, I'm not like a mermaid, it'll hurt if you just shove yourself in." The merman nodded and pulled away.

Kirishima put three fingers inside his mouth as lube and slowly lowered them down. He pushed in the first finger while the merman watched.

He started thrusting his finger when a second finger was added, but it wasn't Kirishimas'. The merman shoved as much of his finger as he could inside.

Kirishima closed his eyes as they both worked him open. Kirishima added another finger. He scissored himself before pulling his and the merman's fingers out.

"Now you can." The merman quickly lined himself up before shoving in. "S-slow!" Kirishima yelled out with tears in his eyes.

The merman looked at Kirishimas' face and nuzzled into him. "Mate hurt?" He sounded so small, nothing like he did when he said Kirishima has no choice but to be his mate.

Kirishima wrapped his arms around the merman. "I'm fine." The merman was searching his eyes. There was a little bit of pain in them.

"Liar."

"No really, I'm fine, it's normal for a little bit of pain." The merman nodded as he slowly sat back up. "You can move."

The merman pulled out and thrusted back in. Kirishima's eyes rolled back showing the merman he was feeling pleasure.

This told the merman to keep thrusting. "Katsuki."

"What?"

"My name, I want you to call it."

"Then call my name, Eijiro. KAtsuki." Kirishima's moaned when Bakugo hit his prostate.

Bakugo leaned down and growled "Eijiro" in Kirishima's ear. That was enough to make Kirishima cum.

Bakugo kept going hard, "KATSUKI!" Kirishimas' eyes went cross-eyed, his nails dug into Bakugos back and his legs wrapped around Bakugos tail.

"I'm going to fill you with my children, Eijiro," Bakugo growled.

Something hard started to fill Kirishima up. Kirishima was a little confused. "Wha..."

"Shh." Kirishima's stomach started to bulge and Bakugo started to chirp.

Bakugo pulled out and put his head in between Kirishima's legs, enjoying seeing his eggs inside of his mate.

Kirishima pushed on his stomach and the egg was getting pushed out, but Bakugo pushed his finger in and put the egg back. Kirishima whined.

"You look beautiful with my children in your stomach, Eijiro."

"How long do the eggs have to be in Katsuki?"

"24 hours." Kirishima groaned. "I'll be taking care of you forever." Bakugo carefully hugged Kirishima.

"What about my home?" Kirishima pet Bakugos spiky hair.

"This is your home now." Kirishima chuckled thinking about how everyone might think he's dead. He wonders if anyone would miss him. "But you can go visit the surface any time you want."

Kirishima smiled at that as he kissed the top of Bakugos head.

.

Mina was freaking out. Kirishima was lost in the ocean, she didn't warn him in time before he got swept away. She will try to look for him, but that's all she could do.

.

24 hours is up and Bakugo carefully pushed Kirishima's stomach to release the eggs. Kirishima hissed in pain. Bakugo kissed his stomach before continuing.

About five eggs came out. Bakugo picked his eggs up with a smile and some tears. He crawled over to Kirishima and gave Kirishima the eggs while wrapping them around him.

Kirishima was feeling tired from holding the eggs for a full day and then getting them pushed out. But once he held them and Bakugo cuddled up next to him, he felt comfortable and happy.

.

Mina swam around looking for any clues for Kirishima when a black-haired merman took a liking to her. Maybe she will find out what happened to Kirishima after all.

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