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Leave a Mark

Summary:

"Tell me why I'm punishing you. I want to make sure you understand. Speak."

He tensed up again. From this angle she could see his eyes shutting and she imagined he was holding back a sound as Aoi sucked on his earlobe. Ah, he was so sensitive.

He swallowed again and licked his lips. Being verbal was usually a challenge to him, but Inosuke forced himself anyway. She always felt a surge of pride that he tried so hard for her. And a tiny, mean part of her also loved to watch him struggle. Just for her.

Notes:

This was entirely inspired by the manga omake where Kanao spanks Inosuke after he kicked Murata and Aoi's floaty head in the back tells Kanao to go all out.

WARNING: this IS a fully consensual sex scene, but it is part of their playful banter that Inosuke denies it at first. If this makes you uncomfortable in any way, please click out of the story. Be safe, everyone!

English is not my first language, so I'm sorry for any possible mistakes. Hope you enjoy!

(See the end of the work for more notes.)

Work Text:

"No! Aoi, don't."

She kissed his neck lightly, a smile forming on her lips. 

"You know I have to do this. You misbehaved."

His blush extended all the way to his ears and he squirmed under her touch. But he didn't pull away. 

"It's… It's embarrassing, I don't want to."

"Oh, really?" Aoi raised her head and stared directly into his eyes. His pupil was blown wide as he stared back at her and she could tell it took everything in him not to give in to her. Oh, she loved their little game. "Then say our safeword. You know how it works, say it and I'll stop right now."

She snaked her hand into his inky locks, her nails grazed the back of his neck. His breath hitched and his throat bobbled as he swallowed thickly. 

Aoi leaned in, kissing the corner of his lips. Her eyes never left his, but Inosuke was having a hard time holding her gaze back. Several seconds passed by, and he didn't say anything. 

"Yeah. Didn't think so." As the words left her mouth, she grabbed onto his hair, forcing him down on the carpet, on his hands and knees. Inosuke didn't resist. 

He already had his shirt off, as happened on most occasions. He didn't shy away from any excuse to keep his torso bare, and Aoi wasn't going to be the one to complain. She admired the contours of his muscled back, the way goosebumps formed on his skin and his spine arched as she lightly threaded the tips of her fingers down it. He shuddered. She licked her lips, imagining what his face looked like right now. 

As her hand reached the hemline of his sweatpants, she moved her angle on the couch, grabbing it with both hands and pulling it all down to his knees. Now he was completely bare in front her. At her mercy. 

She took a moment to admire the plumpness of his cheeks. She ran her hands through the back of his thighs. Aoi couldn't wait to get started and watch all of his skin turn a pretty red underneath her. 

But before that, she leaned in close to his face. She took his hair away from it, tucking it behind his ear as she pressed her lips on the shell of it. 

"Tell me why I'm punishing you. I want to make sure you understand. Speak." 

He tensed up again. From this angle she could see his eyes shutting and she imagined he was holding back a sound as Aoi sucked on his earlobe. Ah, he was so sensitive. 

He swallowed again and licked his lips. Being verbal was usually a challenge to him, but Inosuke forced himself anyway. She always felt a surge of pride that he tried so hard for her. And a tiny, mean part of her also loved to watch him struggle. Just for her. 

"I… I was- bad. I didn't listen to you." 

So cute.  

"And?" She grabbed his jaw, making him look at her. 

He grunted, obviously annoyed, and looked the other way. She gripped tighter. "Don't make me repeat myself." 

"I didn't listen… And now you have a big mark. And people saw it at work. So you're mad." He sounded almost breathless as he pushed himself to speak. Aoi hummed, pleased with his effort. She pecked his lips as a reward. 

Yes, that's what started it today. The last time they were together like this, Inosuke got a little too excited. She told him many times to be careful, as she had a long shift at the hospital and wouldn't have time to cover up properly. The next day, she had a big, throbbing hickey right under her jawline. A few of her regular patients commented jokingly on it, one of them, an elderly woman, wiggled her eyebrows at Aoi. 

Now it was Aoi's turn to mark him

"Good. Let's begin." 

She let go of his face and gave his cheek one last kiss before focusing her attention back on her task. Aoi admired his form just a little bit longer. Let him feel the anticipation while she got an eyeful of the beautiful man in front of her. Exposed and ready, just for her. Aoi loved that Inosuke was absolutely hers, in every sense of the word. He only let her talk to him like that, touch him like that. Make him submit. 

The goosebumps didn't leave his skin. She noticed a slight tremble on his body. Now part of his face was visible at this angle, as the hair remained tucked behind his ear. He was still blushing, his eyes trained on the ground in front of him, as she had taught him. His lips were slightly parted as he breathed heavily. Gorgeous. She itched to touch him, to force the sweetest sounds out of that pretty mouth. 

Finally, Aoi resumed her previous ministrations, resting her right hand on his lower back and then dragging it all the way to his ass. His toes curled and his eyes shut again, reacting like this just from a small stimulation. Aoi grabbed his left cheek firmly, one last warning before she'd start. He let out a soft whine, so brief she almost didn't catch it. So, so sensitive. 

And then came the first strike. 

Aoi always made sure her hand was relaxed instead of stiff as she hit him, working it like a whip. Not only did it feel better, softer, it sounded delicious. The smack echoed on the tiny living room. 

Inosuke slumped forward, moaning. She pulled him back up by his hair and held him in place as she struck again. And again. 

He had stopped holding the sounds back now, jaw slacked open as he moaned and whined. Inosuke always gave her a proper show, and she rewarded him by going as hard as he could take it. 

Aoi had learned early on to not ease Inosuke into anything. He wanted to break, to be roughed up, have his strength tested and prove he can take it. She had wanted to slap the smug smile out of his face on their first few times, when she struggled to keep up with him, breathless and just as fucked out. But Aoi was a fast learner. 

The pure shock in his eyes the first time she had made him come completely untouched, drool on his chin, hair a complete mess, voice hoarse, flushed from the tip of his ears all the way to his toes. That was worth every damn time he'd tease her, tested her limits. The little shit. Then, she had just kissed him tenderly and pushed his face toward her crotch. 

Aoi let go of his hair, tightening her hand around his throat instead, feeling the vibrations of his voice as he nearly screamed. They were both sweating now. It enhanced the friction between her palm and his asscheeks and sent a trhill down her spine. She took a second to watch her handiwork, very pleased with herself. 

The vibrant, angry red marking on his ass contrasted beautifully with the pale color of his thighs. She could trace with her the eyes the contour of her fingers imprinted on his skin. She imagined what it'd be like, tracing it with her tongue instead. Oh, she would do that. Soon. 

One more hit. Now she looked at the whole of him. Inosuke was a mess. Glassy eyes unfocused, tears stained his pretty face. He was shaking, Aoi suspected he wouldn't be able to hold himself up for much longer. Between his legs, his cock was hard and leaking, a few drops already staining the floor. 

Aoi was suddenly aware of the wetness between her own thighs. She rubbed them together, considering whether she wanted to drag this a little longer or to just fuck him already.

Smack. 

"Baby?" She called out to him, softly. 

He whined and blinked more tears down his cheeks. The hand on his throat rubbed it soothingly. She leaned in and kissed his face, kissed the tears away. The hand that had been doing spanking rested on his lower back once again. Aoi hadn't realized yet how sore she was getting. 

Aoi kept peppering soft kisses on his face, his jaw, his ears. "You are such a good boy to me. You took it so well, baby. Get on your back for me, can you do it?" 

She didn't miss how his cock twitched at the praise. This had always been the easiest way to rile Inosuke up. 

She removed her hands from him and let him sit back on his heels. Inosuke hissed as the tender skin of his ass rubbed against his feet. While he took a few seconds to breathe, Aoi got up and made her way to their room. 

She had still been fully clothed, so she dressed down to her underwear, not bothering to rush and folding the clothes on top of their bed. She liked making Inosuke wait. On the nightstand, she grabbed a bottle of lube. Then pulled her strap from a box under the bed. She wasn't sure he'd let her today, but Aoi was still definitely in the mood to wreck him. 

Before returning to the living room, she took a glass of water from the kitchen. Once she got back, Inosuke was lying on his back, as she'd asked. He had kicked his pants off and spread his legs, totally on display for her. Aoi licked her lips and smiled. So he already knew what she wanted. Good. 

Aoi made her way to him, settling the glass next to his head. He got up on his elbows, taking a sip. 

"Thanks." His voice was hoarse already. He looked a little more composed now, but the spanking had clearly taken a toll on him. 

As she settled herself between his legs, Aoi leaned down and kissed him, deep. She held his face, caressing his cheek. Inosuke held her waist, pulling her closer. He groaned into their kiss when her body frictioned against his erection, pressing it against his belly. 

She pulled away, looking him in the eyes. "Are you sure you want to keep going?" 

Inosuke rolled his eyes, squeezing her waist. "Did you hear the safeword? Get on with it already, damn."

She pulled his hair. "Careful there, I might have to punish you again."

"Promise?"

She chuckled. Aoi let go of him again and sat back on her feet. "Actually, roll over a bit. I want to look at it." 

The look and blush on his face were adorable. Aoi wanted to kiss him silly. 

Just as she thought he would protest and start complaining, Inosuke did as she asked. He lied flat on his stomach, holding the pillow that had been under his head. 

Aoi almost instinctively grabbed his waist, admiring the results of her work. Now that his whole body flush had worn down, the contrast between the marks and the rest of his skin was even more striking. She could tell a few parts were probably going to bruise, as they looked darker and more tender than the rest. 

She bent down, bringing her face closer, and just her hot breath against the sensitive skin was enough to make him shudder. Aoi started by kissing lovingly the least hurt parts. Slow, wet kisses. Then she poked her tongue out, licking a small stripe. Inosuke sighed, dropping his head. "You said you were going to look." 

"I am looking. And touching. It's mine, you know. You are mine." Aoi grazed her nails on his waist as she said that. 

Inosuke didn't say anything, but the way his body responded to her was enough. The small shudders, the subtle arch of his back and the sigh he left out again. He knows, he knows he belongs to her. And Aoi, to him. 

She did as she had imagined earlier, tracing the marks with her tongue. It felt wonderful, the soft, supple flesh molding to her. He pushed back toward her, unconsciously. Aoi brushed one of her hands across his ass, stopping right between his cheeks. She heard him suck in his breath. 

She pushed her fingers very slowly, teasing him as much as possible. He groaned, pushing back harder, and she pulled away. 

"Aoi ," he cried out, impatiently. 

Oh, that did it. Her cunt throbbed. Immediately, Aoi got up. "Roll over. Now." 

They settled back into the previous position. It was her turn to feel breathless as he looked at her, begging with his eyes. He was submitting himself completely to her, spreading his legs wider. He looked at her hungry, desperate to just have her. And Aoi was going to give it to him. 

Aoi reached for the strap. She spread her own legs a bit, making sure Inosuke got a full view as she put the shorter end of it inside herself. She let out a tiny moan, relieved. She was so wet, it slipped inside almost instantly. 

Fucking finally. 

She heard him groan, his cock leaking. It's fine, she wasn't going to keep him waiting anymore. 

Aoi lubed up the other end of the strap and lined herself with his hole. It twitched as she rubbed the tip against it. She dropped a few more drops of lube on them, just for good measure. 

Aoi held one his thighs up and pulled him closer to her. "Look at me," she said firmly. 

His chest was heaving, flushed again. He held her gaze with just as much firmness this time. 

Until she pushed all the way inside him. Inosuke moaned loudly, dropping his head back. She bit her wrist, muffling her own noises. She wanted to focus on him now, how beautiful he looked being filled up, how she could feel him tightening around the strap, as it pulled on the end settled inside her. It felt like heaven. 

"You okay?" God, she didn't like how disheveled her own voice sounded. 

Inosuke still had his head facing upwards, but Aoi could see it, that damned smug smile forming on his lips. Bastard. 

"Perfect. So full."

Those words shouldn’t have the effect they had on her, but something twisted deep in her gut and Aoi couldn’t think clearly. Inosuke, it was all Inosuke. She groaned and pushed harder against him, deeper inside, until their hips flushed together. He gasped, reaching for her. They kissed, messily, hungrily. Saliva dripped down her chin, she sucked on his tongue. He bit her bottom lip and she could feel it bruising. Then she tucked her face into his neck, inhaling the smell of sweat and sex on his skin. And she started moving. 

Aoi was too worked up, too insatiable to go slow. Her hips moved on a frantic rhythm because she knew he could take it, she knew he needed it just as much as she did. And she kept kissing and sucking on his neck, as if made up for anything. The desperate string of moans and jumbled words coming out of Inosuke only urged her on. God, Aoi wanted to make a mess out of him. Deciding he deserved at least a little mercy, however, she finally touched his cock, completely ignored until now. He sobbed, thighs tensing up, and started bucking his hips wildly. Inosuke was so close and Aoi just wanted to give it to him, make him scream her name and forget his own. He asked her to go harder and she did. Stroked him faster, he twitched in her hand. 

She felt breathless, dizzy, so full of him on her, his legs around her waist, his taste on her tongue. It didn’t take much longer until Inosuke was arching his back, coming so hard it spilled out of her hand and onto his stomach, a few drops onto his chest. He gripped her forearms tight as she kept fucking him through his orgasm. Aoi had lifted her face to watch him come, and it was beautiful. He looked back at her, so vulnerable, so loving. She felt herself getting closer just from that. 

Aoi knew he was getting oversensitive, his body shook hard and tears wouldn’t stop spilling down his pretty face. She wondered how much more of her he could take now. Aoi reached down rubbing her own clit, trying to slow down a bit so as not to overwhelm him too much. She was so close, dammit. Inosuke clumsily pulled down her bra, sucking on her nipple. Aoi cried out, moving her hand faster. Just a little more

And then it hit her, that intense wave washing over her whole body. Aoi let out a drawn out moan, slowing down steadily until she stopped completely. Suddenly, all was quiet. There was just the sound of their ragged breaths, chests heaving together. 

Inosuke was still shaking a little when she pulled out of him, carefully. She tossed the strap aside after taking it out of herself as well and reached down to kiss him. Slowly this time, affectionately. “I love you,” she whispered. A smile blossomed on her lips as Aoi looked at him like that man, completely fucked out of his mind, had hung the goddamned sun, moon and stars. Inosuke smiled back, holding her hand to his face once she was done wiping his tears off. A genuine, loving smile. A rare type he kept only to the most important people in his life. And that, she was. The most precious thing he had.

“Did you forgive me then?”

Aoi pinched his nose, not amused. He yelped and then cackled like the little bastard he was. “Fine, I love you, too. Even though you’re mean sometimes.”

“Am NOT.”

“Am too.”

She pinched his cheek this time. “You’re lucky I’m tired, I should spank you again. You brat.” 

Aoi got up and handed him the glass of water again. Inosuke took it and sipped while rubbing the sore cheek with his free hand. She stared again, thinking how adorable he looked like that. God, she loved him so much sometimes she hated him. 

He lied back down after finishing the whole glass. The poor thing looked ready to pass out. Unfortunately for him, Aoi wasn't about to let her boyfriend sleep on the living room floor, much less without cleaning up first. She extended her hands out to him. 

"C'mon, I'll carry you to the bathroom." 

He scoffed, not moving an inch. "Sure you are. Go first, I'm right behind you." 

Aoi rolled her eyes so hard she almost strained them. Of course, Inosuke was packed with muscle and a little taller than she was, but being a nurse meant picking people up was a very present activity in her daily routine. It seemed the pretty idiot at her feet needed a reminder. 

"What the hell -" the expression of pure outrage on his face as she picked him up and dragged him towards the hall was hilarious, to say the least. Aoi had to hold herself back not to drop him down as she shook with laughter. Even if he had wanted to struggle, Inosuke couldn't do much at his current state. His body felt like jelly and he was impossibly sore all over. So he went along as his girlfriend helped him to their bathroom. And looked at her with a soft smile. He was the happiest when he could make her laugh like that. 

-

The next day, after Aoi had cleaned both of them up, tended to Inosuke's bruises and cuddled her boyfriend the rest of the night, she finally had the day off. Her plans had included sleeping in through the morning, but she ended up thanking her biological clock for waking her up at 5 am, as she got to watch Inosuke limp, grunt and complain like an old man as he got ready for work. 

Between huffs and pained whines, she heard him mutter something along the lines of "How the hell am I gonna show up like that?!" and she smiled against the covers, holding back a laugh. Inosuke was right, after all. Maybe Aoi was a little mean sometimes.

Notes:

Hey there! If you made it this far, thank you for reading! Kudos and comments are always appreciated <3