The Nsfw Book for Weebs

After Hours: Kirishima Birthday Special

(a/n: I have not written smut in a very long time. I'm going to need a little slack for this lol . also, this is when you two are in your third year)

When the festivities died down and the class had retired to their respective rooms, the air became charged. The tension was almost suffocating in the most delicious way. While Kirishima was still happy and over-the-moon about the thoughtfulness of his classmates, he hadn't been able to spend the time alone with you in the way he wanted. But now? Nothing was getting in the way of that. He remembered you telling him that you'd be in his room waiting. As he attempted to look natural walking back to his room, he couldn't help but think in the back of his mind that his close friends knew exactly what was going to happen after hours.

They would give him so much shit in the morning.

Shaking those thoughts, he hadn't realized that he was standing outside of his dorm room door. Heart racing, he softly opened the door. A gentle red glow cascaded over him and the room. The low hum of the fan spread the scent of your perfume around the room. It was an intoxicating smell, and the site of you putting your hair back sent shivers down his spine (and maybe a little to his dick). Closing the door, he turned back to face you.

"Hello Mr. Birthday Man. I hope you enjoyed your day" you murmured alluringly, beckoning him to you.

A tiny smirk painted on his lips, the man replied, "I enjoyed my day, but I think my night will be even better."

Reaching to you, he put a hand under your chin and brought his lips to yours. It felt like home to you, all things right and warm. But as soon as it was there, the feeling was replaced with hunger and heat. Deepening the kiss, the fever kicked in. Fingers tangled in each other's hair, the clothes soon became a messy pile on the ground.

Kirishima pushed you onto your back, laying you on his bed. He paused, lust taking a step back into love. 

"Everytime I see you like this, and anytime I see you in general, I can't help but thank whoever is out there that put you in my life", he admitted, tears threatening to spill. Smiling, you sat slightly up and kissed his neck.

"I say the same about you everyday Red. Now, dry those tears and rail me like you mean it."

Laughter burst from the two of you, rapidly dying down as the lust from minutes prior made its appearance again. 

Lips locked again, feverish touching elicited explicit moans from the two of you. A particularly loud moan escaped your lips, causing Ei to put his fingers in your mouth.

"That should shut you up. Can't have the class knowing what a bad one you are. Now, suck." His timbre deepening, only amping your arousal more. You sucked on his fingers like your life depended on it. "Can you be a good baby and take care of Daddy?"

As you eagerly nodded your head, he flipped you to be on top. Lube was normally something used but with the heavy tension in the air since his birthday morning handjob, it would be discarded for the night. 

You knew that being on top for such an occasion meant no bratty behavior. It was all about him, and your satisfaction was on the back burner (even though Kirishima was against leaving his partner without at least 3 orgasms).

Pulling his briefs down and your own underwear, his cock sprang free, angry and red with drops of pre-cum leaking from the tip. Despite having done this many times, the sight of his length and the veins made you even wetter. Holding back a moan for a moment, you lined yourself up.

Slowly, almost teasingly, you sank down, causing illicit moans to escape from both of your throats.

"No teasing baby," he rasped, voice hoarse and threatening, the grip on your hips tightening to emphasize his warning.

"Mhm," you replied, eyes hazy as you start rocking yourself.

The feeling was delicious. The slow riding, eventually picking up the pace. Fire boiling like lava, the song of two lovers struggling to stay quiet. Sweat dripping down his chest, he propped himself up on his elbows as you leaned over, Kirishima matching your thrusts.

The familiar buildup present in both of you, the pace quickening, it was heavenly. 

Breaths becoming more and more ragged, the intoxicating scent of sex and each other was the final push over the edge. 

As the two of you reached your climax, you felt needles in your shoulder as Eijiro bit into your shoulder, his hand clamping over your mouth to prevent waking up the class.

Euphoria coursing through your veins, the two of you collapsed back, panting heavily. 

He looked at you, eyes an oxblood color and a smirk on his face.

"Don't give out now. It's gonna be a long night."