Not Your Baby
also available on ao3 here !!
Pairing: Jeonghan x Chan (background poly OT13)
Summary: Accidentally discovering Jeonghan (begrudgingly) has a mommy/pregnancy kink 🔞
Words: 3.4k
Content: pwp, canon compliant, Chan very much taking advantage of the discovery but Jeonghan is a bit of a bitch about it, surprisingly tenderhorny, smut warnings under the cut ♡
a/n: i know this wasn't my first svt fic overall but it is the first part of the ot13 series. i think it makes sense to start there when the series has some of my most popular ones but au's WILL be crossposted
Smut warnings: anal sex, blow jobs, rimming, kind of feminisation?, referring to ass and dick as pussy and clit, mommy kink, pregnancy kink, spit, Chan starts going into a headspace towards the end but it isn't expanded on in this fic
Chan was suspicious as soon as Jeonghan waltzed into his bedroom. He couldn't help it when Jeonghan looked all too pleased with himself, as if he'd dug up some juicy dirt or successfully executed one of his silly schemes. He had the right to be wary of his intentions, especially since he didn't even live on this floor. So obviously he'd sought him out, which only added to the funny feeling brewing in his stomach. It didn't help that he was only wearing one of Seungcheol's oversized shirts.
"Channie, my beloved," Jeonghan drawled as he sat on the edge of the bed, crossing one bare leg over the other and leaning back on his hands with a smirk that made Chan's skin crawl. "I was checking up on SNS and found something I'm sure you'll remember."
Chan sat up from where he'd been slouched against the headboard and locked his phone, dropping it onto the mattress to give his full attention. Obviously his wording made him even more suspicious, but his curiosity would always win over his skepticism. It may just be what kills him one day.
"You found something online? And it has something to do with me?" he asked with narrowed eyes, already regretting indulging his hyung in whatever it was he'd apparently found. He had a bad feeling about where this was heading.
Jeonghan didn't bother answering, just crawled closer to sit beside him at the head of the bed. Chan rolled his eyes with a deep sigh as soon as his phone unlocked, recognising the years-old video in barely a second. He'd been naive to have thought that he wouldn't have to deal with this again.
The sound of ‘Dino, who's baby are you?’ ‘Jeonghan-hyung's baby’ increased in volume as Jeonghan held in the side button, obviously milking the moment for all it was worth. If he'd set out to annoy the fuck out of him, he'd succeeded in record breaking time. And of course it had to be compilation of every time he'd brought it up on camera. Pretty effective form of torture, in Chan's opinion.
"Hey, Dino-yah," Jeonghan leaned in close after the video finally ended, an infuriating grin plastered on his face. "Should I ask?"
"Hyung, I thought you were over this," Chan groaned, burying his face in his hands to avoid dealing with the man now barely an inch away. "I'm not a baby."
He peeked from between his fingers when he didn't receive a response, the silence stretching on for a little too long. He wasn't sure what he expected, but Jeonghan seeming to genuinely think it over was certainly not it. Catching his stare, Jeonghan shifted to lay on his side with his head propped up on his hand, eyes flickering over Chan's partially covered face in consideration.
"Prove it."
Chan dropped his hands to his lap and stared down at Jeonghan, more confused than ever. "What?"
"Prove it," Jeonghan repeated, pushing himself up onto his knees with an intense expression Chan had seen more times than he could count, but rarely towards himself. "You don't think you're a baby? My baby? Try to make me believe it. I dare you.”
Chan's breath stuttered when he caught onto what he was implying, suddenly aware of how close Jeonghan had become with him being crowded against the headboard. He was waiting on Chan to make the first move, giving the opportunity to back out if he wanted to. No way in hell he was going to let this pass. Chan had never backed down from a challenge and he wasn't going to start now.
The only thing was, Chan had never fucked Jeonghan. In the times they’d been together since he was integrated into the group's relationship, it was always the other way around. Jeonghan treated him like he was made of glass, as if he would shatter if he wasn't touched with the utmost care. He'd never really understood why when none of the other members were so gentle, not even Wonwoo, but he never complained. It was nice to be so loved. But Jeonghan was daring him to do the exact opposite, finally showing the mean streak he'd heard about from the others. Chan was determined to give him what he wanted, even if it made him nervous.
He raised a shaking hand up towards the back of Jeonghan's head to tangle his fingers in his grown-out hair, gently pulling him down into a soft, unassuming kiss. Jeonghan made a confused noise in his throat but melted into it regardless, placing his hands on Chan's shoulders and settling himself lightly in his lap. Chan ran his free hand up Jeonghan's thigh to rest at his hip beneath his shirt, squeezing his waist gently. He could do this. He just needed to wait for the right moment.
It took longer than expected, but he could be patient when he needed to be. When he sensed his guard was finally down, he took the chance. Chan wrenched Jeonghan's head back by his hair so forcefully that he only stayed upright by the now bruising grip on his hip. The shock in his expression only lasted a moment, morphing into a crazed grin with eyes turned wild.
"Thought you'd backed out for a second," Jeonghan gasped as Chan's finger's tightened in his hair. "Show me what you've got, baby."
The words barely left his lips before his breath was stolen, Chan tugging his body closer to drag his tongue up the other man's throat. Jeonghan dug his fingernails into his shoulders with a sigh, but barely looked affected, just smirking at Chan's barely contained frustration. So he did the first thing he thought of. He bit down. Hard.
Chan knew he shouldn't leave marks, their makeup artists always annoyed by having to cover them, but he couldn't bring himself to care. Jeonghan would get over it. He sucked on the skin he'd bitten, Jeonghan's neck immediately blooming reddish-purple. It made his breath hitch, but his whine sounded more annoyed than anything else.
“Aw, is my baby teething?”
Chan looked back at him in shock. What the fuck.
He growled, a sound he'd never made before, something low and angry and possessive. Jeonghan was obviously pleased by the reaction, grinding his hips down with a smile that was far too soft for what they were doing. Chan wanted nothing more than to wipe it from his face.
“What the fuck is your problem?”
He shoved him to land on his back, Jeonghan cackling on the way down. The hem of his shirt came up to reveal the milky skin up to his chest, and Chan hated that it made his mouth water. Chan pulled it off the rest of the way, leaving him in only his underwear while he was still fully clothed. It should have felt powerful, but he felt stripped just as bare under Jeonghan’s heavy gaze.
Chan dug his fingers into the meat of Jeonghan’s thighs, his patience running thin. “Do you want me to call you mommy or something?”
Jeonghan's body tensed. Chan looked up to meet his wide eyes, his lips parted and hands twitching by his sides. Oh.
“You do, don't you?” he leaned back up to hover over Jeonghan's face, caging his body beneath him. “Mommy?”
“Fuck you.”
Jeonghan gritted his teeth, clearly trying to cling onto his cockiness. His deepening blush gave him away. He wanted it. If he couldn't win his own way, Chan would just have to run with it. Two could play at this game.
He tore his shirt and pants off with little grace, not caring where they landed on the floor. Jeonghan looked somewhat amused, but surprisingly didn't say anything. That was new. The whole thing must have really gone to his head if he could bite his tongue. Good.
Chan surged back down to nip at his bottom lip. Jeonghan huffed, tangling his fingers in his hair and pulling down to make him kiss him properly. It was heated, biting, but laced with the underlying sweetness that all of Jeonghan’s kisses had. As much as he pushed Chan's buttons, even to this breaking point, it was always there. As much as he loved him, Chan tried to not linger on it too much. He couldn't afford to get distracted. He couldn't lose the game now.
“Want me to touch you?” Chan dragged his hand down Jeonghan's body, barely grazing over his underwear to make him shiver. “Can I touch you here, mommy?”
Jeonghan glared, shoving his underwear off and forcing Chan's hand down. Chan wasn't going to give in so easily, immediately taking it away and settling on his stomach between his bent legs. Jeonghan got up on his elbows, looking at Chan with a grimace like he already knew what he was about to say.
“Can I eat your pussy, mommy?” Chan looked up through his eyelashes, grinning when Jeonghan fell back to the mattress with a groan.
He took that as a yes, pushing Jeonghan's thighs apart further for easier access. Jeonghan’s breath hitched as Chan licked straight over his hole, tongue flat and slow to make him squirm. Clearly not what he wanted. Chan hummed as fingers twisted in his hair to shove him forward. So impatient. Still, he pointed his tongue and let Jeonghan try to ride his face, but it wasn't the best position for it.
“Pussy tastes so good,” he moaned exaggeratedly when Jeonghan let up barely a few minutes later, his low stamina always frustrating him to no end. He pulled back to look up at him with spit running down his chin. “Wanna suck your pretty little clit, too. You're so pretty everywhere, mommy. So pretty just for me.”
Jeonghan didn't break, but he looked close to it. His eyes were narrowed but his chest heaved, pink dusting his cheeks and thighs trembling either side of Chan's head. Chan knew he finally had the upper hand and was determined to keep it that way. It wasn't quite the way he wanted it, the complete opposite if he really thought about it, but he'd take it.
He moved up further to take Jeonghan into his mouth without warning, dropping right down to slip into his throat. Chan still wanted to tease but didn't have it in him to go slow anymore. He was starting to take notice of how needy he was getting himself, vaguely aware of the precome probably dripping on the sheet. It punched a groan out of Jeonghan, his fingers tight in Chan's hair like he didn't know whether to hold him down or push him away. It made his eyes water, but it wasn't bad enough to even consider stopping.
Seungkwan's voice nagged in the back of Chan's mind to slow down, his job needed his voice and Jeonghan wasn't actually small, but he couldn't bring himself to care. Not with the way his usually poised hyung was shaking and covering his mouth with his free hand, poorly muffling his breathy sounds. He never bragged about it, but Chan knew he was good at giving head. But he didn't want to make him come like this.
Chan pulled away with a loud, wet pop, wiping the spit from his chin with the back of his hand and crawling up Jeonghan's body. He took pride in the way his eyes widened as he hovered over his face, obviously trying to work out Chan's next move. His resolve was crumbling and Chan was happy to take advantage of it. Unfortunately, he still had the capacity to piss him off.
“Why are you crying, baby?” Jeonghan cooed as he ran a thumb over Chan's cheek, far less bite than before but still grating on Chan's nerves. He didn't realise his eyes had watered enough to spill over. “So cute, but I thought you were gonna show me what you've got?”
He ignored him, keeping the eye contact as he pressed a finger to Jeonghan's spit-slick hole, somehow managing to actually take him by surprise. Jeonghan gasped and shuddered with the fingertip slipping inside, body betraying his mind. Of course spit wouldn't be enough to take it much further, but leaving to get the lube could wait.
Chan tore his eyes away from Jeonghan's to scan down his body. He bent down to take one of his nipples into his mouth and ran his thumb over the other, making Jeonghan let out a shaky sigh. He pushed his finger in further, sucking hard when Jeonghan's body tensed. It gave Chan a terrible thought. Terrible for Jeonghan.
“You know I love how tiny you are,” he said against his skin, Jeonghan gasping as he crooked the finger inside and licked over his nipple. “But it is a shame your tits are so small. Imagine if they were as big as Mingyu-hyung's. Don't you think they'd be so good to fuck?”
Jeonghan was too far gone to argue at that point, outwardly moaning at his words. He whined when Chan finally pulled away to get the lube, but the seconds he was gone was enough to clear his head, his demeanor switching back like nothing had happened. Chan knew he was stupid to think he'd won so easily.
“Of course my baby can imagine me with bigger tits. You would be so cute trying to fuck them,” he cackled in delight at Chan's grimace. “Such a shame I can't magically make them bigger for you.”
“Wouldn't need to do anything if I got you pregnant.”
It was Jeonghan’s turn to stare in shock, mouth falling open and blushing strawberry pink. Chan couldn't quite believe he'd said it himself, but it was easier to double down than take it back.
“They'd be so big and round and full,” he placed his hands back on Jeonghan’s chest, squeezing at the small amount of flesh in his palms. “Can you imagine the way they would bounce when I fuck you, mommy? Imagine me getting you pregnant?”
Jeonghan was lost for words, pupils blown wide and panting hard. He let out a sound somewhere between a moan and a sob when a cold, slick finger pushed back inside, not seeming to have noticed the click of the lube cap. Chan didn't want to hurt him, but he was starting to truly lose his mind from ignoring his dick for so long. He knew he could take it, quickly stretching him out on two, then three fingers. Judging by the way Jeonghan was grinding down, he'd had enough.
He easily lifted Jeonghan from the bed to flip him over, forcing his head down onto the mattress and raising his hips. He definitely heard the lube click this time, trying to look at Chan without moving from the position to ask what he was doing. He didn't get the chance, his hands fisting in the sheets as the cold, sticky liquid was poured directly into his stretched hole.
Chan watched him shudder at the feeling, a small amount already leaking out as his body writhed. He made Jeonghan arch his back with one hand and dragged a finger up through the spilled lube to scoop it back inside. Chan spread his cheeks to see his hole gape open, hearing Jeonghan make a sound like he'd choked on his own spit. It gave him another terrible idea.
“Look at you. So fucking wet,” he kneaded Jeonghan's ass, taking a deep breath to stay in control. “But I can get you wetter.”
Jeonghan made a confused little noise, catching on a second too late. Chan spread him almost painfully wide, spitting into his hole loud and nasty on purpose. Jeonghan whimpered at the feeling, able to imagine how filthy and used he must look. They hadn't even fucked yet.
Chan could basically read his thoughts, not very difficult with the way he was shaking, and decided to finally take mercy on him. He was getting just as bad.
“Try not to spill.”
Jeonghan scowled when Chan laid down to position him over his lap, looking like he was seconds from throwing a fit. “You're seriously going to make me do the work after all that?”
Chan rolled his eyes, snaking one hand between Jeonghan's legs to line up and press just the tip inside. He grinned at his frustrated sigh, knowing it looked borderline feral but he couldn't help it. Not when he'd decided what he was going to do.
“Nope.”
He pushed him upright and shoved Jeonghan's hips down at the same time his snapped up, the force of it making him cry out. Only the bruising grip on his waist kept him from tipping forward, eyes rolling back with Chan lifting him back up slowly to do it again. It was no secret that Jeonghan had a thing for random shows of strength, so moving him around like a ragdoll was something Chan knew would turn him pliant. It was easy with him being so light. Chan couldn't keep it slow for long.
The sound of the lube and spit was loud and filthy, gushing from his hole as Chan sped up. It made his head spin, knot in his stomach tightening way too fast. He had to make Jeonghan come first.
“Pussy feels so good. So fucking good for me, mommy,” Chan managed to get out between heavy breaths. “So tight and wet. Wanna feel you come. Want mommy to squirt on my cock. Please, mommy, please.”
A string of garbled words tumbled from Jeonghan's lips as he hurtled towards the edge untouched, letting out a surprised oh as his come hit Chan's skin. He collapsed down when Chan let go, panting against his throat when he didn't stop moving.
“Come for me, Channie baby,” he drawled close to his ear, not seeming to care about the oversensitivity. “Have to get it deep if you wanna get mommy pregnant.”
Chan shuddered at the words, slamming into him a final time before adding to the mess, coating his insides white. It made his mind go blank, wrapping his arms around Jeonghan tightly as he shook through it. As much as he wanted to keep them that way, Jeonghan's full weight pressing him into the mattress, they couldn't stay like it forever. They both groaned when Jeonghan rolled away to flop down beside him, bodies aching and sweaty, but Chan didn't mind.
Jeonghan used the last of his strength to pull Chan close, making him rest his head against his chest and carding his fingers through his hair as if he was the one who was just fucked brainless. He actually did feel a little weird now that it was over, cuddling in closer to chase the comfort. He wasn't sure how, but Jeonghan picked up on it before he did himself.
“Are you alright?” Jeonghan asked, pressing a kiss to the top of his head.
“Aren't I supposed to be asking you that?” Chan snorted, confused by the way things had suddenly turned.
“I'll probably be sore later, but I'm good,” Jeonghan paused, seemingly trying to find the right words. “I shouldn't have just sprung that on you, though. It was kind of a lot, huh? But you did good. Always good for me.”
Chan hummed, brain a little too fuzzy to really understand. In any case, he was happy to take the praise and steal warmth in the comfort of his bed, even if it was bound to feel gross soon with the lube, sweat and come drying. He was just starting to drift into sleep, exhaustion hitting hard now that he'd stopped moving, but Jeonghan's deep sigh brought him back.
“None of this can leave this room, okay?”
A chill ran down Chan's spine, immediately thinking he'd fucked up bad with this one. Maybe he did take it too far.
“You didn't like it?”
“Oh, shit. No, no, no, Channie baby. I did. I promise,” Jeonghan tipped his chin up to make him meet his panicked eyes. “I just meant this can't get back to Soonyoungie. He tried to call me mommy once and I smacked him for it. I can't have him think I'm picking favourites.”
Chan just stared at him for a moment, gears in his brain turning, before erupting into laughter. It was so stupid. So, so stupid. But that was why he loved Jeonghan so much. He told him so between giggly kisses, light and safe in his arms. He still wasn't entirely sure what he was feeling, but Chan could keep a secret.









