KiriBaku AU

Holy Shit You're Amazing

Sero and Bakugou were still sat at the side of the pool, both calmly watching Mina and Kirishima play in the water, chasing after eachother with tremendous speed.

Kirishima looked so happy with Mina it made Bakugou's heart ache a little, he wanted to make Kirishima smile like that, even though he'd never admit it.

Suddenly he was pulled out of his thoughts when his Boss, Aizawa, pushed through the large doors with his yellow sleeping bag he seemed to take everywhere with him.

Kirishima noticed the new male enter and swam up to Bakugou, moving inbetween the blonde's thighs to rest his head on Bakugou's leg.

Bakugou noticed and patted Kiri on the head, reassuring him. Aizawa stood to the side of him, a few meters away for safety from Bakugou's protective Merman and said:

"Good Morning, I am Aizawa Shouta, Bakugou's Friend."

The man may be sleep deprived but he was still very polite. Kirishima visibly relaxed into Bakugou's touch and waved a tired hand to Aizawa in greeting.

Mina swam up to him immediately after and began chattering away about her day, giving Bakugou a headache.

Kirishima noticed his scowl and pouted, leaning into Bakugou's torso for comfort. However the redhead had mistakenly placed a hand directly ontop of Bakugou's cock.

Since the blonde had his legs in the water and Kirishima was so broadly shouldered, noone could see the Mermans hand, nor the angry blonde man's dick getting harder.

His eyes widened and he tried to cover It up by leaning down to comb his hands through Kirishima's hair. The redhead moved his hand to actually cup Bakugou's balls through his sweatpants, obviously realising that Bakugou had gotten hard.

This made the other male clamp his mouth shut and bite his tounge to stop from moaning, Kirishima's hand was warm and wet, soaking through Bakugou's sweatpants so the material clung to his now throbbing cock.

He tried desperately to not think about it, but when Kirishima looked up at him with lustful, darkened eyes and moved his hand to firmly grasp Bakugou's dick at the same time, well the blonde almost came on the spot.

"H-hey assholes, me and Kirishima are going to swim over to the far end so we can chat alone."
The others looked at him and smiled, waving him off happily, unaware and innocent.

Bakugou slid into the water, his body pressed up against Kirishima. The redhead was smiling as he used his tail to swim to the far end of the pool, out of sight from the others.

Bakugou cursed Kirishima for having such a hot body and subconsciously bucked his hips to press his crotch into Kirishima's chest more.

The redhead only smiled more as he reached the very end of the pool, immediately pressing Bakugou against the side, his head being the only thing above water.

Kirishima licked his lips and moved his hands underwater while keeping eye contact with Bakugou, he slowly moved the blonde's sweatpants and boxers down, revealing Bakugou's (actually quite big for a omega) cock.

Bakugou watched with lust filled eyes as Kirishima sank down into the water, his cock was twitching and aching to be touched at this point that Bakugou had thrown his attitude away for a moment.

To Bakugou's delight, he felt two big hands grip his hips roughly. He groaned as Kirishima licked the tip of Bakugou's dick and then proceeded to take all of Bakugou in his hot mouth.

The blonde's face was fully red and he put a hand in Kirishima's hair underwater, gripping it tightly.

He spread his legs open wider, his whole body shaking with pleasure as the Merman took him so easily, swirling his tounge around the tip and hollowing his cheeks.

Kirishima held onto Bakugou's legs, lifting them up to rest on his shoulders with another hand to hold Bakugou's back so he didn't go under.

"Shit, fuck, oh my go-d~" Bakugou's voice went slightly high pitched as his words mushed into eachother, mixing with moans of pleasure.

Kirishima sucked harder, determined to make Katsuki cum in his mouth, he used his tounge to lick all over the blonde's cock and he moaned, sending vibrations down Bakugou's dick.

"F-fuck Kiri...Shima I-" Before Bakugou could finish, he leant back and shot his hot cum straight into the Mermans mouth, making him moan louder than before at hitting his climax.

He shakily breathed, holding the side of the pool as he pushed his dick as deep as he could into Kirishima's throat, cumming more than he had ever done before.

When he had finished, Kirishima swallowed the last of Bakugou's cum and came back up to the surface, his tounge hanging out with white liquid in his mouth.

Kirishima pulled Bakugou's boxers back up and looked into the blondes dazed eyes:
"Bakugou tastes amazing" He said, licking his lips.

Bakugou blushed again and his attitude returned.
"Of course I did, fish for brains. Come on let's go back to my apartment. I'm tired."

The redhead seemed excited and winked before he left to swim through the tubes that took him back.

TIME SKIP

Bakugou was finally at his door, pushing it open to see Kirishima in his tank, happy and excited. Too much damn energy.

Bakugou practically collapsed onto his bed, groaning as he covered himself up in the covers, he heard another splash and soon Kirishima was snuggling up in bed with him, Bakugou didn't even mind his wet body ruining his bed.

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Thanks for reading! 😊
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🔞🔞🔞🔞 Some smut here, basically a blowjob.
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Any ideas or suggestions are appreciated 😊💡