Chapter Text
Being brought up to Yokohama Landmark Tower in the claws of a juvenile Kaiju was not on your to-do list that day. While Emi was squawking excitedly as she climbed and Kenji (as Ultraman) was trying to scold his kaiju daughter below, you pondered how you managed to find yourself in this predicament.
The night before…
Kenji and you stumbled into his room, his lips hot on yours and your hands in his hair.
The two of you never left for that dinner date. Even if you both planned it many months in advance, Kenji took just one look at you and dragged you into his room.
“I shouldn’t have gotten ready here.” You gasped between kisses. “My dress. My makeup.”
Because you were helping Kenji and Hayao Sato fix their supercomputer, Mina, you were at their house most of the days after work. You had to stay late at your research job that night so you told Kenji you would just get ready at his house. You said it would be more convenient anyway to get ready there so that he doesn’t have to pick you up from your apartment.
Well, now you know it was a mistake. Both of you now had no plans of leaving. You thanked whatever force of nature that had Kenji’s dad attend a kaiju 2-day conference somewhere in Osaka.
The house was yours and Kenji’s.
“You look great in your dress…,” He kissed the corner of your lips, “and you probably look even better out of it.” Kenji pressed you against the wall, his large hand around your wrists. “We can have dinner,” he kissed your neck, “some other time.” He pinned your wrists above your head. “Let me have this.” He whispered and attacked your mouth again, pushing his tongue inside.
You arched into him, his other hand holding your leg up. You sucked on his tongue, wishing you could yank at his hair.
“Fuck.” He moaned, pulling away slightly. His pupils were blown and his lips were deliciously kiss swollen. His hand slowly traced your thigh, his fingers under the silken fabric of your dress. “I’ve been wanting this for so long.”
You were so glad you picked the dress with the slit for tonight. “Really?” You laughed breathlessly. “Couldn’t tell.”
“You will later.” He promised, locking eyes with you, his gaze smoldering.
You felt yourself grow wet at his words, heat pooling in your core. He smirked at you and moved his hand on your thigh. You moaned as his hand went higher until he grabbed your ass. He squeezed your cheek and pulled your hips closer to him, letting you feel just how much he wanted you.
You whimpered as he kissed your neck, sucking and leaving hickeys on your sensitive spots. Your back arched against the wall and you tried to free your wrists from Kenji’s hold, but he only gripped them tighter.
“Do you know how good you look when you work?” He pulled away and looked at you, pure possessiveness and longing in his eyes. “Can’t tell you how many times I’ve thought of you bent over the workbench.” He squeezed your ass again. “Did you know what you were doing?”
“Wish I did. Would have gotten you to do this sooner.” You kissed him and he released your wrists from above your head. You tangled your fingers in his messy locks and deepened the kiss, letting Kenji’s tongue explore deeper in your mouth.
He moaned as you moved your hips against the bulge in his pants. He pressed forward, pushing himself closer. “Y/N.” He moaned.
You brought one hand down and slid it under his shirt, feeling his powerful muscles and scars, tracing each one with your fingers.
He inhaled sharply when your hand passed over his nipple. “Fuck, Y/N.” He kissed you with a new fever, biting your lips and pulling your hair to let him in deeper. “Y/N.” He repeated between kisses. His breath was shallow as you continued to trace and map his body. “Y/N.”
You pulled away from the kiss, a string of saliva connecting both of your swollen lips. You brought your other hand down and moved it under his button-down shirt. He closed his eyes, letting out a shaky breath as your warm hands explored his body. He dropped your leg to brace himself against the wall, his palms to either side of your head. Your hands traveled lower until they reached his belt buckle. You looked up at him, as you started to remove it.
Kenji held your wrists. “Not yet, Y/N.” He smirked, his kiss-swollen lips only making the expression hotter. “We’re so eager tonight, aren’t we?”
You blushed, unable to come up with a retort. He was the one who dragged us in here! You looked away, wrinkling your nose.
He chuckled. “You’re so cute.” He said softly, caressed your cheek with his knuckle, and tilted your chin. He smiled at you, his eyes warm.
The mood suddenly shifted and you felt your heart swell with affection. You brought his hand back to your cheek and held it. You smiled back at him, turning your head slightly to kiss his palm.
“We’re really doing this, huh?” He chuckled.
You had been dating for four months now, but with the amount of time you’ve been spending together it felt longer. You've been fixing Mina since before you’ve been dating-- around a month at best. Your old professor, Hayao Sato had trusted you to help them since you worked with him before and you have proven to be reliable. Since then you’ve been spending hours and hours at his house every day. You alternated between fixing the supercomputer and being Ultraman’s eyes and ears while Mina was out of commission.
Finding out Kenji was Ultraman was thrilling. Helping him was like getting a front-row seat to the action. As a kaiju researcher, you learn so many things that the books have never told you and that your observational studies will never reveal. It was stressful assisting him in combat, but truthfully it made the two of you even closer. You mourned the absence of your job once Mina’s program was on the computer, but Kenji wanted you to still be a part of ‘Team Ultraman.’
Who were you to refuse?
Kenji spent time with you while you fixed Mina, letting you get to know Kenji Sato outside of his media persona. It was then you slowly fell for him and he for you. Initially, this dinner date was a promise to be fulfilled when Mina was fixed, but now that you were in Kenji’s arms, you realized this was even better.
Like he said, dinner could wait.
Kenji kissed you again, slowly this time. He leaned his forehead against yours. “You sure about me, Y/N?” He asked.
You sighed. “Yes, Kenji.” You giggled thinking of a joke. “Of course, unless Ultraman has a better proposal.”
He laughed. “ Ultraman has seen the edits on Tiktok. I honestly can’t blame people for making those. My edits however are so much better.”
You rolled your eyes and laughed along with him. “I suppose so.”
He chuckled one more time before slowly leaning in again to kiss you. “Kenji.” You whispered and opened your mouth, letting his tongue in.
“Y/N.” He said and deepened the kiss. The kiss built up and slowly became more intense. You gripped his hair and his one hand palmed at your breast. He rubbed his thumb over your nipple, sending jolts of pleasure throughout your body.
You gasped between kisses. “Bed, please.” You moaned as his hardness pressed against you.
“Fuck, yes .” He lifted you, holding you by the ass as you wrapped your legs around his lean waist. He didn’t break the kiss as he carried you easily to the bed, lowering you slowly onto the sheets.
He knelt in between your spread legs, admiring you. “Beautiful.” He said softly. He ran his hands up your legs, pushing up your dress skirt until he reached your upper thigh.
He moaned when he looked at your underwear, the lacy thong that pressed into the softness of your body. He brought his hand lower and looked at you for permission.
You bit your lip and nodded, pushing yourself up to your elbows to watch him. He hooked his fingers on the strap and slid your underwear off, exposing you.
“You’re so wet for me.” He said, tossing the undergarment away. He leaned forward and kissed your thighs, biting and sucking at the soft flesh.
You moaned and reached down, tangling your fingers in his messy locks.
You felt his fingers nudge at your entrance.
“Is this ok?” He asked, his pupils blown. His mouth was inches from your pussy. If he stuck out his tongue he would… you swallowed. You needed him now.
“Please.” You breathed out and Kenji slowly pushed his finger inside of you. You gripped his hair, his long finger reaching deeper than you could.
He lowered his mouth to your clitoris as he finger fucked you, curling his finger over and over again to hit your g-spot.
Your toes curled as his eyes met yours. He was still fully dressed in his dinner date outfit, his shirt still tucked into his pants. He ate you out, his tongue skillfully swirling your clit and giving kisses to your groin and inner thigh. His forearm muscles flickered with every movement, his rolled-up sleeves drawing your eyes to them.
He smirked. “You like that, Y/N?” He pressed your G-spot again and you moaned.
“Yessss,” you breathed out, your one hand gripping the sheets. He pulled his fingers out of you and spread you wider, looking at you like a feast to be devoured. He bent his head and ate you out, licking from the bottom of your pussy up to the clit.
“Fuck.” You swore, feeling Kenji’s tongue inside of you. You moaned at the sensation, your legs twitching and trembling as he replaced his tongue with his fingers again. He sucked lightly on your clitoris and you jolted. “Kenji!” You cried out, only to receive a smirk from him before he resumed.
Kenji continued to lick your clit and only moved his mouth away once your breathing came in shallow pants. You felt like you were at the edge of your orgasm, everything he did felt so sensitive.
“Not yet.” He muttered and added another finger inside of you. You moaned at the stretch, relishing how he felt inside of you.
“K-Kenji.” You managed, your hand moving to your breast. You groped your chest and played with your nipples, wanting more stimulation.
He smirked again. “You look so good like that.” He watched you for a few more moments as he scissored his fingers inside of you, relishing how you squirmed on the bed, your knees making a pitiful attempt to touch each other.
“I need this off.” He touched the skirt of your dress, the fabric bunched up to your waist now.
You moaned, tossing your head back. Everything he did felt so good, but you had enough wits about you to say: “Rip this dress and I’m going to fucking kill you.”
He laughed. “Wasn’t planning on doing that.” He pulled his fingers out of you and flipped you over by your hips. The suddenness of it took your breath out of you as he didn’t give you any time to protest before sliding his two fingers back in, the angle deeper than before.
Your face was squished against the sheets and part of you wondered how hard it would be to take your make-up off the white fabric. You moaned, drool leaking out the corner of your mouth. You pushed backwards and he swore as he pumped his fingers in and out of you.
After a while, he pulled his fingers out and unzipped your dress, the cool air of the room hitting your warm back. He then pulled you up into a kneeling position so that your back was against his chest and you were between his legs. Kenji kissed the back of your neck as he pulled the dress off you, leaving you in just your bra. He tossed it aside, the fabric hitting the floor with a soft thud.
“Don’t move.” He told you and he got off the bed. You placed your hands in your lap obediently, your mind lost in the moment.
You turned your head to watch him walk to the head of the bed, taking his shirt off as he went. You licked your lips as you watched his back muscles shift with his movements. Your eyes fell to his narrow waist, a part of his body that caught your eye when you first met. You were obsessed with it and seeing how his broad shoulders tapered into it made you want to do unspeakable things to him.
He tossed his shirt aside and his pants and socks followed suit. Kenji then took a condom and lube out of his bedside drawer and tossed it on the bed.
His gaze was heated on your almost naked body. “Good girl.” He purred and climbed onto the bed, leaning his back on the headboard. You felt your mouth water at the sight of his bulge under his black boxer briefs. Fuck. You wanted nothing more but to take his cock out of his shorts. Your eyes snapped back to Kenji’s.
He smirked, pure confidence in his gaze. Kenji’s eyes roamed your body, his eyes dark with lust. “Come here, Y/N.”
You crawled to him and he hoisted you onto his lap, making you straddle his legs. “You’re so fucking hot.” He ran his hands up and down the curve of your body. You arched into the touch, grinding your hips downward onto him.
“ Shit.” He groaned, his eyes rolling back. He held your back, his hands nearly covering the entire upper part. He unhooked your bra with one hand and you shuddered at how easily he did that. He tossed the garment away and he pulled you closer, capturing your nipple in his mouth.
“A-ah.” You whimpered softly as he bit it lightly, his other hand playing with your other breast. He looked up at you from under his long lashes and you shuddered at the sight. He switched his hand and his mouth, kissing your cleavage as he did so. You gripped his hair again, sighing.
The need between your legs increased with every lick on your breast. “Need you.” You managed, grinding on him again.
“Mmm.” He hummed and pulled away from your chest. Kenji moved his hips in time with yours and kissed you, the two of you making out roughly as you ground on each other. Fuck. You swore in your head. You were so needy that you could finish like this.
“Kenji,” you moaned, “ please. ”
He held your back and maneuvered you under him. You knew of his alien strength, and being manhandled by him like this was exhilarating. It made you imagine all the ways he could take you.
He bracketed your head with his arms. The two of you stared at each other for a while, the soft lighting of Kenji’s room doing wonders for his muscles.
He smiled softly and you returned it, reaching up to brush his sweat-damp hair away from his forehead. “I look like a mess, don’t I?” You asked, your eyeliner probably smudged to hell.
He held your hand to his face and turned his head to kiss your palm. “You look gorgeous.” He said and let go of your hand. Kenji leaned back, sitting on his heels. He reached for the lube and the condom he tossed on the bed earlier.
“Are you ok with this?” He asked, his eyes wide.
While you appreciated the asking for consent and his way of making you comfortable, you needed him. You huffed. “Kenji, if you’re not inside me in the next five minutes, I swear to God I’m dragging your baseball ass to the restaurant.”
He shook his head and chuckled. “Just wanted to be sure.” He uncapped the bottle of lube and generously put some on his fingers. He positioned them at your entrance. “Just wanted to be sure you wouldn’t blame me if you can’t walk tomorrow.”
You only managed to shudder before he slid his two fingers into you. “Kenji…,” you turned your head into the sheets, your chest rising and falling with your pants.
He soon inserted a third finger and you were about to lose your goddamn mind. You felt the edge of your orgasm, his preparing and teasing almost unbearable. He pushed down on your lower stomach and you cried out, the feeling of his fingers inside you all the more intense.
“Kenji! I—“You tossed your head back, moaning. Your eyes rolled to the back of your head. “ Fuck!” Your whimpers and cries were high-pitched, foreign to your own ears.
“That’s it, baby.” He said with a smirk. That fucking smirk!
You cursed him in your head as you whined. “Kenji, Kenji, Kenji,” you babbled, one of your hands gripping the sheets, the other over your mouth. “A-ah~”
“Finish for me this way.” He said and kissed your inner thigh. He used his other hand to rub your clit, rubbing in slow circles.
You squirmed and fucked his fingers with your hips, your body almost moving of its own accord.
“ Faster.” You breathed out.
“You’re almost there, baby.” He said, fucking you harder with his fingers. “That’s it.”
Kenji smirked as you squirmed beneath him. Fuck. Fuck. Fuck.
Something shattered inside you, the pressure building up inside of you releasing. You arched off the bed. “Fuck, Kenji, I’m—“ you moaned loudly and he fingered you through your orgasm. You shuddered, your legs shaking as you came down from your high.
Kenji pulled his fingers out of you and put them in his mouth, tasting your wetness. You swore at the sight of Ken Sato licking his fingers. He leaned forward to kiss you, letting you taste yourself on his tongue.
“That was hot, baby.” He said between kisses. He smiled against your lips. “But I’m not done with you.”
You could only imagine how blown your pupils were. “Kenji…,” you said softly, “inside me. Please.”
“So polite.” He teased, flicking your nose. “Where is my snarky scientist?”
You managed a weak laugh.
He smiled at you then he kicked off his boxer briefs and sat back on his heels, his cock hard and leaking. You moaned as you watched him stroke himself, his cock red. “Downstairs I imagined you like this so many times in my head.” He said, pumping his cock. “I imagined you tight you’d be.” He groaned. “You know those times I excused myself?” He chuckled. “Had to go to the bathroom to calm down.”
You bit your lip, your body still shuddering with the aftermath of your orgasm.
He continued. “I imagined how good you’d feel around my cock.” His eyes were half-lidded with lust. You bit your lip, your knees touching as your need for friction between your legs increased.
“Please.” You whimpered.
He ripped the condom packaging open and rolled it on his cock. He leaned forward, his cock pressing at your entrance. Kenji lifted your legs, placing them on his shoulders. He placed his hands on either side of your head.
“ Please.”
He pushed into you, both of you groaning at his head breaching your entrance. The stretch of his cock burned, but it felt so good as he pushed into you.
Part of you was shocked at your flexibility, but you were grateful for it nonetheless.
“Kenji.” You moaned, your hands holding the back of your thighs.
“Y/N.” He said as he slowly pushed in, rocking his hips in and out, pushing in inch by inch. “You’re so fucking tight.” He whispered, his warm breath against your ear made you shudder. You moved your hands to his shoulders, scratching them.
You moaned as he filled you, your mind blissfully blank except for him. Kenji finally bottomed out, his hips flush against your ass. You felt stuffed, another orgasm on the horizon.
He moved slowly at first, thrusting into you. He picked up the pace, the room filling with the sound of flesh slapping on flesh. He pounded into you and you moaned with his every thrust, your nails digging into his shoulders.
His cock hit that spot in you every time making you see stars. “You feel so good.” He moaned. “So pretty… bent like this.” He kissed you and pulled away to watch you cry out.
“Harder.” You moaned. “ Harder.”
Kenji complied, moving his hips fast and hard enough that you were sure you would feel bruises tomorrow.
“F-fuck, Y/N.” He groaned. “Fuck, you’re so tight.”
You whined, your pussy clenching around his cock. Your breathing became erratic, heat pooling in your core. “Kenji!”
“Moan my name, baby.” He said breathlessly, his own pace losing its rhythm. “I’m so close.”
A few more thrusts and that did it for you. You came, crying out his name.
“Yes, baby.” He moaned. He took your legs off his shoulders. He pulled out and you gasped at the sudden loss of him inside you.
“Ken—“
He flipped you around, your stomach and chest on the bed and the lower half of your body in his lap. He thrust into you in one motion.
“Kenji!” You screamed and gripped the sheets, your swollen pussy overstimulated. You had no control, he used your hips to pull you onto his cock, thrusting as he used you as his toy.
His pace turned erratic and his pants grew heavy. “Y/N, Y/N, Y/N, a-ah—“ He thrust into you one last time and he came, groaning.
You moaned softly, feeling his cock throb inside you.
“Fuck.” He moaned. Kenji bent over and kissed your back before pulling out.
You winced as he turned you over gently, everything was so sensitive. You looked at him, a lovely red flush all over his body.
“Hi.” You said softly, reaching for him.
He smiled at you. “Hi.” He kissed your hand.
You were both dazed and spent, perfectly content to not move anymore.
“Should we clean up?” Kenji asked after a moment.
You were already falling asleep. “Nah.” You muttered, snuggling into the sheets. Normally, this would disgust you, but you haven’t had sex in… well, a long time and you felt exhausted.
“We’re so sweaty.” He poked your side.
“No.” You batted his hand away. “Lie down, Kenji.”
He chuckled and leaned over to kiss your forehead. “I’ll get a towel.”
He pulled the condom off and tied it. He stood, a glint in his eye.
You raised a brow. “Don’t you da—“
“Kobe!” Kenji said and tossed the condom in the bin.
You groaned and rolled your eyes. He looked at you for praise, his arms stretched out.
You clapped mockingly, a slow clap. Boys. You thought.
“Wanna quit baseball and be a Professional Condom Thrower then?" You asked, grabbing Ken Sato the MOS Burger Plushie. You tossed it in the air and caught it. “What about tossing Ken Burger here?”
“Ken Burger is a limited edition stuff toy.” He walked back to the bed and took the toy from you, placing it back on his side of the bed. “He is not to participate in Condom throwing.”
“Why not?” You smirked and grabbed the stuff toy again. You placed it in front of your face. “For the championship win! Keeeeeeeen Sato!”
He scoffed and gave you the middle finger as if it wasn’t inside you a while ago. You put your hand on your chest in mock offense. You raised your middle finger back. “Bitch.” You mouthed.
He laughed and turned, walking to the bathroom.
You must have dozed off watching his back muscles moving because the next thing you noticed was Kenji wiping a cool, damp cloth over your body.
“Rest, Y/N.” He said softly. You looked through half-closed eyes to see him wipe himself before tucking you and him under the sheets.
He pulled you close to him, wrapping his strong arms around you. Kenji kissed your forehead and yawned.
“Goodnight, Y/N.”
Your heart was warm as you snuggled into his embrace. “Kenji.” You said softly.
“Yeah?” He said and stroked your hair.
It might have been your sex-addled brain, but you couldn’t help but feel like your heart was going to explode in your chest.
“I love you.” You couldn’t stop yourself from saying those words. Those three little words were barely above a whisper, but he heard it loud and clear.
He inhaled sharply.
Oh shit. You realized what you had just said. He might not believe you, hell, you might not believe it yourself. It was the first time you said it to him and…
But you just knew. You knew you did love him. You just couldn’t have picked worse timing. You looked up, about to apologize but he simply kissed your forehead again and held you tighter.
“Oh.” Kenji stroked your hair. “ I love you too.” He said softly, his voice warm with affection.
You smiled at him sleepily, relieved at his response and at the same time feeling so safe and warm in his arms. “Love you.” You said.
“Love you.” He said back.
You closed your eyes, your breathing slowing down until you fell asleep.
If you had stayed awake a little while longer, you would have heard him say it again.
“I love you, Y/N.”