Fun With His Mate
“Well, we will see about that” Izuku whispered into his ear and Kirishima knew that he was literally fucked now.
“Schools starts tomorrow, are you going to be okay or do you want me to go with you?” Izuku asked as they had breakfast.
“I will be fine, no need to worry.” Kirishima said quietly as he finished his plate.
“I will block my scent, that should do the job” Kirishima said as Izuku looked at him doubtfully, but the Alpha didn’t press further.
“Okay, but text me should something happen, I will teleport to you right away” Izuku said as he took the plate to put them into the dishwasher.
“Sure.” Something was strange, but Izuku wasn’t sure what it was.
The day continued and he didn’t know why, but Kirishima always blocked him. The problem was that it turned his instincts on, an Omega that was trying to get out of his reach, his Omega. It was afternoon when Izuku had enough and grabbed the boy.
“Do we have a problem with each other?” Izuku asked as he cornered his Omega, but his reaction told him everything he wanted to know. Kirishima blushed as he looked away from him.
“Oh, are your two instincts fighting?” Izuku asked as he leaned into Kirishima’s personal space, he licked at his ear getting a gasp.
“Could it be that my little Omega is needy?” Izuku asked in a mocking tone as his hand touched Kirishima’s crotch, his hand squeezing the cock behind his pants. The reaction was so perfect, his mate blushed as a low moan escaped his lips, it turned him on.
“Well, we did talk about training, didn’t we?” Izuku asked in a seductive tone as he lifted Kirishima against the wall. Now face to face, he couldn’t hold himself back as he kissed his lovely mate.
Kirishima the poor thing, could only moan and gasp as Izuku worked him up. They both know that the attraction to each other was probably to 50% the fault of them being mates now. That their biology and instincts were taking a huge part in this, but it was how the world worked.
He grabbed Kirishima’s waist with one hand to hold him in place as his other hand got under the shorter man’s shirt. It traced over the soft but still muscled body until it reached his nipples.
A new smell let his mind go completely blank as his instincts took over. He wasn’t in control as he carried Kirishima into their bedroom, he also wasn’t in control when he ripped his mate’s clothes off.
He could see the fear in Kirishima’s eyes as he didn’t stop no matter what the boy said, he wanted to stop, but his instincts were too strong. He could smell it, the slick, his Omega was producing slick for him.
He was so close to tasting it, so near to get his finger in his mates’ tight hole, but he stopped as he saw the expression Kirishima made. He looked afraid, he was scared of him. His mind took over the moment it could, and he stopped himself.
“Shit, shit,” He whispered as he took two steps back. This was a disaster, it never happened to him before. How could he of all people lose control, looking into Kirishima’s eyes he knows that he had fucked up.
“I’m sorry, I’m so sorry” He mumbled as he pressed himself against the wall. He wasn’t like this, he remembered his training. Close your eyes, breath in, breath out. Repeat it until your mind is clear.
“Are you physically hurt?” Izuku asked after a minute of breathing.
“No” it was whispered so shyly that his heart hurt.
“Can I come over, I swear that I’m in control” Izuku said, but Kirishima hesitated. To his luck, his mate wasn’t so stubborn as he nodded after a while of thinking. He walked over and used the blanked and rolled Kirishima in it to cover him. He then lay himself down on the bed and pressed his Omega against his chest.
He released calming pheromones as Kirishima started to tremble from the shock of being almost raped. Guilt was building but as he looked at the small frame of his Omega, how could he do that to his mate.
“I’m so sorry, I don’t know what came over me. I’m always in control, but this urge after I had smelled your slick. I have never felt that way, my control was ripped off my hands and---” He stopped there as he didn’t know how to continue.
“It’s okay, you are my Alpha after all” Kirishima with a quiet voice.
“No, it’s not. This is terrible and I swear that it won’t happen again. I swear that I will not force you into something that you don’t want to” Izuki whispered as he pressed Kirishima against him.
“However, I can’t deny, that the urge to claim you is getting stronger, but I think we should first get used to the idea of having sex with each other before we jump right into it.” Izuku suggested as Kirishima’s trembling got better.
“Hmm” The boy just hummed as he didn’t look into Izuku’s eyes, it hurt to see his mate so afraid.
“And how are we gonna do that?” Kirishima asked as he looked up.
“I will take my clothes off and then I will just play a little with you. It will be enough to satisfy my urges and for you to get used to it” Kirishima’s face was beat red as he slowly nodded.
A grin spread over Izuku’s face as he slowly took his clothes off, if he was confident in one thing then it was in his own body. He was not disappointed as Kirishima stared him up and down, mouth open as drool dripped out.
Putting his clothes down he got back into bed and pulled on Kirishima’s blanked a little, the other man blushed as he was exposed before his mate again.
“Do you like what you see?” Izuku asked from above him and Kirishima could only nod as his fingers traced the eight-pack right before his eyes. It was so firm and he couldn’t stop but wonder, the smirk on Izuku’s face didn’t help this one bit.
“Is my body good enough for my little Omega?” Izuku asked him teasingly, his hands on his shoulder as he leaned down to kiss his mark. A shudder run through his body, it felt so good to be touched by his Alpha.
Almost getting raped by Izuku had one good thing and that was that his instinct was completely still whatever Izuku did to him, no growling, no snarling.
Kirishima closed his eyes as he felt Izuku’s tongue on his nipple as he started to suck on it, it felt so fucking good as his cock started to hurt from how hard it was. He was already so close since he wasn’t allowed to touch himself the last few days. His hand let go of Izuku’s body as he reached for his cock, but Izuku pinned his arm above his head.
“When did I allow you to touch yourself?” Izuku growled out and did wonder to Kirishima’s body.
“You are an Omega now, and until I have trained you enough. This--” Izuku said as he grabbed his cock.
“—will only be touched by me, do you understand your Alpha?” Izuku asked as he stared into his soul, he could only nod as he wanted to please his Alpha. This urge to be good for his Alpha was overwhelming, he could already feel how slick dripped out of his ass.
“Good boy now put your other hand over your head and hold them there. If you move them, then I will not be as merciful as back then.” Kirishima could hear that he meant it, so he grabbed the sheets as felt Izuku’s mouth travel over his body.
He felt how he sucked everywhere on his body, leaving one mark after another. A shiver went through his body when Izuku spread his legs apart, his eyes focused on his handsome face as he looked up at him.
A devilish smirk appeared on Izuku’s face as he saw him looking, without breaking their eye contact, he let two of his fingers around his waiting hole and gathered his slick. Kirishima’s eyes grow even wider when he saw how Izuku brought them slowly to his mouth and licked it.
The effect was instant, his eyes blow wide and filled with lust as he looked at Kirishima. He feared that he had lost control again, but Izuku surprised him when he just got his two fingers gently into his hole to get more.
“Fuck, you taste so fucking good” Izuku whispered as he leaned up to give him a kiss. He then felt how the two fingers in him started to search for something and not a second later he gasped.
Stars clouded his vision as his body was filled with pleasure and lust, he was so close to coming. His body ached for it, cried to get release.
“Come for me baby, give your Alpha what he wants” Izuku whispered into his ear. Kirishima couldn’t take it anymore as his cum painted Izuku’s abs, Izuku just gathered as much as he could before he put it into his mouth.
“It tastes just like you look, sweet and sexy” Izuku answered his questioning gaze.
“It’s my turn now” Izuku said as he turned him on his stomach and panic came up as he felt Izuku's cock slide between his ass cheeks. He tried to turn back, but Izuku held him in place.
“Don’t worry, I’m not gonna fuck you. But my little cock seeks a bit of friction.” Izuku said as he rutted between his ass cheeks and Kirishima scoffed. ‘Little cock’ my ass, this thing was a monster, it felt like it was at least 13 inches long.
How was this supposed to fit into him? He heard Izuku groan with each thrust and he started to control his breathing as he noticed that his cock got hard from it. Not only his cock, but his ass also produced slick without stopping, pushing it out for Izuku to slide better.
“Shit, turn around babe, I’m gonna mark you all over with my cum” Izuku suddenly said, Kirishima didn’t even think about it before he turned facing Izuku as he came all over him. How the fuck could a guy produce this much semen? His hair, face, chest and stomach were painted with it.
And he didn’t mean a small splash, no it covered his entire body and started to run in all his openings. Licking it away from his lips he realized how addicting it tasted, it tasted so good, no wonder that Izuku couldn`t stop licking his slick.
“You look gorgeous marked with my cum” Izuku said as he gave him a fierce kiss.
“Did it feel good?” Izuku asked as he broke their kiss.
“Yea, it felt good, no need to worry.” Kirishima said with a laugh.
“Come, let’s get into the shower, or do you prefer my cum to dry on you?” Izuku asked with a laugh as his face turned red, now that he was coming down from his high.
“Fuck you” Kirishima said with a laugh as he stood up.
“It’s please fuck me Alpha, but you are gonna learn it” Izuku said from behind him as he slapped his ass making him blush again.
The rest of the day was spent in peace. Kirishima’s instincts didn’t complain at all whenever Izuku touched him, didn’t mean that he didn’t complain. They showered together and it gave him a fantastic view on Izuku, and a few comments of course, but still worth it.
Izuku made them dinner, while he cleaned the mess they had made in the bedroom. It still amazed him how much a single person could come. The day ended with them watching a movie as he was in Izuku’s lap.
The next day was a bit different as Izuku didn’t have a good feeling about this, it made him uneasy to be away from Kirishima like that. Not that he was away from him, but more like that, he didn’t know how others might treat him at school.
He ditched school to look after his mate as he took the bus to Kirishima’s school. He will have to ask Nedzu for a temporary hero license, or he will take forever to reach Kirishima. He should just mark Kirishima with his teleportation symbol, that way he could reach him whenever he wanted.
He took his time as he went to the flower shop and got a few roses for his Omega, with a smile speeded up to his goal.
Thought, the flowers hit the ground the moment he saw his mate, rage took over as he materialized his scythe.
“The next person that moves will find himself in the hospital”