Warnings: infidelity, jealous! Jaemin, teasing, mentions of cum, dom! Jaemin, dom/sub reader, explicit language, Jaemin masturbating, cock riding, receiving head, giving head, just a whole lotta smut.
Word count: 3.4k
Summary: There’s no way you and your hot step brother can be together, it’s not possible. He has a girlfriend and you’re his step sister. But that doesn’t stop you two from having hot feelings for one another.
Ever since your mom married into the Na family, the air has been intense. Your mother always fights with your stepdad and it’s everyday fighting. Not a day goes by when the house is quiet.
When things go well, it’ll never last that long. Your mother always has something to argue about and your stepbrother does even help.
He’s always bringing his girlfriend over and god all those screaming coming from that small mouth of hers. All those moaning and bed frames hitting the walls drive you nuts.
You’re not jealous but you are.
Also the day your mother got married into this company, you have slight feelings for Jaemin. It’s wrong because he’s your stepbrother.
Ever since he’s got a girlfriend, those feelings faded because you know you’ll never have a chance.
It was a hot summer day, you were getting bored coup up in your room so you change into your bathing suit to get some sun by the pool and maybe swim.
When you head outside, you saw Jaemin playing basketball with his regular friends. You are in eye contact with Jaemin but you rolled your eyes at him.
“Oh hey y/n!” his friend Renjun waved. You wave back. Jaemin and his group of friends are alike, they flirt and they mess around with girls. They’re all suitable for one another. Except for Renjun, he’s got a brain.
They all stop playing basketball when you remove the towel around your chest. “You look hot!” Jaehyun yelled. You stick the middle finger at him, earning laughter from the others.
Jaehyun’s always a flirt. Sometimes you’ll fall for it because he’s so handsome. Other times, you’d flirt back to tease him.
“Do you want me to put lotion for you?” Jeno asks. You shake your head, “No thanks” you lay spray on the sunscreen all over your body and lay over the towel.
“Come on” Jaemin got frustrated at his friends. They all exchange laughs and continue playing.
You put on your earphones to block out any more comments coming from them and close your eyes as you peacefully enjoy the summer air.
Jaemin and his friends finished playing basketball since it was getting too hot for them to continue. They all rested against the metal fence, drinking water to hydrate themselves.
“Yo! We should throw y/n in the pool!” Jeno says. Jaehyun smirk. “I like it!” He agreed.
“I don’t think she’ll like that” Renjun says as plays with the basketball in his hands.
Jaemin didn’t like the idea but he wouldn’t mind seeing you wet.
“Chill Renjun, we didn’t ask you to join” Jeno scoff. Jeno and Jaehyun creep their way to where you were laying. Jeno made a sign to Jaehyun which he understand quickly.
Jaemin and Renjun came shortly after Jeno and Jaehyun. Renjun didn’t want to get in trouble so he stayed on the side. Jaemin sat down on the lawn chair and watch the two pull the stunt.
Jeno and Jaehyun grab one each one of your arms and legs and threw you into the pool. You scream midair and sink down into the pool.
“Don’t worry y/n! I’ll save you!” Jaehyun said as he take off his shirt and dive into the pool. He grabs your waist and helps you back to the surface.
You gasp for air and wipe your face. You push Jaehyun away from you, “get away bozo! I know how to swim!” Jaehyun laughs as he pushes his hair out.
You look at Jeno who was waving at you. You saw Jaemin who was just staring at you amusingly. “Why don’t you get out of the pool love?” Jeno said seductively.
“Why don’t you get in the pool, love?” You copied him. Jeno laughs as he takes off his shirt and jumps right in.
You felt him grab your legs from under the pool. You giggle as he pulls you under the water. You kick him and swim back up.
“Don’t touch her!” Jaehyun splashes the water at Jeno. Jeno hisses and splashes him back. The two of them kept going back and forth and they notice you laughing, they started splashing.
Jaemin felt anger build inside of him, seeing you laughing with his friends when you don’t even crack a smile in front of him. Jaemin felt jealous.
He got up and left to go into his room. He angrily walks into his shower and rinses the sweat off his body. He looks down at his hardened cock.
“Fuck!” He groans. He wraps his large hands over his throbbing cock and pumps himself.
He leans his head back as he closes his eyes, thinking about his girlfriend. But then, you came inside his head.
He groans. He pumps himself faster as your body in that tiny two-piece shows up in his head. How perfectly round your ass looks in that tiny the bottom part look.
“Fuck” he mutter. He wonders how much he wants to untie it and fuck you right in front of his friends.
Jaemin groan as he came all over the bathroom tiles. He breathes out and opens his eyes to look at his mess.
“Like this Jae?” You asked Jaehyun as he taught you how to play pool.
After you all had fun at the pool, you decided to chill in the basement playing pool, and eat pizza. Jaemin had joined you all.
“No baby like this” Jaehyun went behind you and lean over your back to help you set up your hands. You knew what he was doing, you smirk as you lean more down as your backside hit his crotch.
You heard a small moan coming from him. Jaehyun looks down at your face, he knows what you're doing.
Jaemin is witnessing all of this. He didn’t like the fact you were only in your bikini playing pool with his friends. Jaemin stands up and takes off his sweater.
“Put this on” his tone was demanding. Jaehyun moves away from you and looks at Jaemin in confusion.
“Why? It’s hot” you said. Jaemin got angry, he snatch the stick from your hands and handed you his sweater.
You glare at him and grab the sweater and put it on. You could smell his musky lotion. It was big on you too, you roll the sleeves up and continue playing the pool.
Later that night, you had fallen asleep on the couch. Jaemin walked his friends out to their cars. “Yo Jaehyun!” Jaemin called his friend out.
“I told you, you can go for anyone but my sister,” Jaemin said lowly. Jaehyun scoff and close his car door. He walks over to close the distance between the two.
“Why? Is it because you want her or because you're jealous?” Jaehyun whispered in Jaemin’s ear. Jaemin pushes Jaehyun with force making Jaehyun stumble back.
“Come on guys stop!” Jeno broke the two apart. Jeno told Jaehyun to get in the car and leave. Jeno look at Jaemin who was still angry.
“Come on, don’t pick a fight with someone who’s three years older than you, he’s just playing around” Jeno reassure Jaemin. Jaemin calms himself down.
“Okay?” Jeno asks one more time. Jaemin nodded. The two bid goodbyes as Jaemin went back inside to get you.
Jaemin sigh when he saw you sleeping. His sweater had gone up to your waist, showing your bikini. As much as he wanted to untie it he held himself back.
He picks up your sleeping body and takes you to your room. You open your eyes slightly, seeing Jaemin who was carrying you.
“Oh, you up” he looks down at you. He puts you down to your feet. “They all left?” You pout.
“Yeah because you fell asleep” Jaemin chuckles. You crack a smile.
‘There it is’ Jaemin said.
“Well then, goodnight Jaemin” you yawn as you make your way into your room to wash the chlorine out.
You look down at Jaemin’s sweater, debating or not you should wear it. It’s dirty. You groan and throw it in the dirty hamper. As much as you want to smell Jaemin’s sweater all night long, you have to remember he has a girlfriend.
“Jaemin, catch” you threw his sweater to him, he caught it perfectly.
“You didn’t have to give it back” he laughs. You shrug.
“It doesn’t smell like you anyways” you mutter and walk back to your room. Jaemin heard you.
You walk back to your room and go on your computer to do some online shopping. Then, the same sweater you threw at Jaemin hit your computer screen.
You look in the direction it was thrown. Jaemin was standing by the door, “I put extra of my cologne on it. Don’t suffocate” He smirk and walk away.
You smile and unfold his sweater. The cologne filled up your nose quickly. You laugh at yourself as you set it beside you.
The front door swung open as your mother's voice and your stepfather's voice echoed through the whole house.
You groan and shut your door. It didn’t even help so you put on your earphones to cancel out their arguments.
The next day, you find yourself in the jacuzzi to relax your muscles from the workout you did earlier. While you rest quietly, you heard shuffling in the back.
You open your eyes to look at the noise to see it was Jaemin. “You’re here” he sounded relieved. You nodded. You watch him take off his shirt leaving his shorts on and get inside the tub.
He sat across from you as you both awkwardly relaxed. You close your eyes and lean your head on the edge of the tub.
Jaemin watches the way the ends of your hair are wet as the steam of the hot water makes you sweat. He watches the droplet of sweat from your neck down to your breasts.
He looked down at his bulge. Are you fucking kidding me?! Now?
Jaemin practically groans. He got up and left the tub. You open your eyes again to see Jaemin leaving without a word.
“Where are you doing?” You ask. He looks back, “bathroom.”
You nodded and purse your lips. You don’t know why he’s always disappearing whenever you are around. Like the other day, he disappeared inside the house while you were in the pool.
He’s been acting strange. You weren’t sure why but you’re going to find out. You got out of the tub and wipe the access water. You creep your way to the bathroom he was occupied.
You crack the door open a bit to see him jerking himself off. You gasp quietly. Not at the fact he’s jerking off but at the size of his cock.
You gulped down your saliva as you felt your best getting wet. You push the door open, Jaemin jump to see you at the door.
“Y-y/n” he called your name in surprise. You walk over to him and kneel in front of him. You look at his cock and back at him.
“I want to help,” you said. Jaemin didn’t get the chance to respond when you wrap your small hand around his hardened cock and pump it.
He melts into your touch. He let out a moan. “You’re so hard” you watch how his foreskin slides back and forth.
“Because of you baby,” he moans. He looks down at you with hazy eyes. He runs his hands into your hair and pulls it to the bag.
“Suck it!” He demands. You open your mouth as he pushes your head into his cock. You gag as Jaemin moan grew louder.
He aids your head up and down. You groan at the fact you couldn’t go all the way down because his dick was too big.
“Fuck, I’ve always wanted this” Jaemin groans as he releases your hair. You didn’t stop. You kept deepthroating him and spit on his dick.
“You’re so nasty baby” Jaemin slurred as he felt he was about to cum. You gave him the last deep throat before he came inside of your mouth.
“Fuck” he grip the sink as he releases his cum. You remove your head from his cock as his cum drips down your mouth. You happily swallowed his cum.
“Hmm” he wipes the white liquid off your chin. You stand up and untie your bikini, strolling down in front of him. Jaemin watches your naked body in awe.
“Care for round two?” You asked. Jaemin breathes out and picks you up. He led you to the guest bedroom and shut the door with his foot.
He lay you on the bed and spread your legs. You look up at the ceiling as his lips kiss your folds. You gasp. It was a familiar but rare feeling. It’s been a while since you received ahead.
“You taste so good,” Jaemin said in between your fold as he roughly licks your cunt. Jaemin thumb made a circle around your clit to double the pressure for you.
“Ooo yes” you moan. Your back begins to arch as you massage your tits to keep your hands busy. Jaemin inserts two fingers and begins pumping them. He looks up at you as you breathe heavily.
“Oh my god, fuck yes” you moan. Jaemin smirks as he pumps faster. You look down at him, the two of you make eye contact.
“Jaemin, I’m going to cum” you moan but beg him to go faster. Jaemin understood and pump faster feeling the pressure built.
You started seeing stars in the ceiling and let go of that pressure. Your legs shake as you came. Jaemin slowed down and remove his finger. You even flinched when his finger left your cunt.
Jaemin got over you and stroke your face, your cheeks had turned red from the amount of time you hold in your orgasm.
“Is it wrong that I want to kiss you?” Jaemin asks softly. You look at him tiredly.
“What we’re doing is already wrong” you laugh. Jaemin smiles and leans in to kiss you.
For the first time, you get to taste how it is to kiss him. You melt into his kiss. Jaemin distracts you from the kiss as he inserts his dick inside of you, making the two of you moan.
“Your pussy is so fucking tight” Jaemin groaned as he thrust inside of you.
“Your dick is so hard inside this tight cunt” you bit your lips as you run circles down your cunt.
“It feels so good baby” Jaemin's head tilts back. You moan as you notice the vein on his neck. You lean in to kiss it. Jaemin moans as he pumps faster.
“Fuck, I want to see you ride this dick,” Jaemin says as he switches the position. You giggle as you help Jaemin out his dick back in once you are on top.
You moan as you take his cock whole, pushing your whole weight down to his cock. Your hands hold on his thighs as you rock yourself back and forth, feeling his tip hit your stomach.
“Fuck yes” Jaemin breathes out as he watches you ride his cock. You had enough of your teasing as you lean toward and begin to rock your hips fast.
Jaemin’s moan got louder as he grabbed your waist and pump himself faster. The two of you move in sync.
“Hell yes, just like that Jaemin” you called out his name which made him hungrier for you.
You look down at him, “tell me my pussy is better than your girlfriend’s.” Jaemin eyes roll back as you rock your body back and forth again.
“Yours is so much better baby” he groans. You smirk as you lean down to kiss him.
Jaemin switches the position. Jaemin sat at the edge of the bed as you sit on top of his lap.
You reinsert his dick as you ride him again. Jaemin kisses your nipples and looks up at you as you ride him. Jaemin slaps your ass making you moan.
“Do you know how much I want to fuck you right in front of my friends?” Jaemin whispered in your ears. You groan. “Badly?” You answered. Jaemin got mad as he lay on his back and begin to pump his dick inside of you.
“I’m going to fuck your cunt so hard, it’ll be hard for you to seat” Jaemin whispered.
“Fuck he’s Jaemin” you moan into his ear as your hands grab a handful of the mattress sheet.
Jaemin growl as he slaps your ass a few times. “Slap my ass like that baby” you beg. Jaemin kisses your neck as he slaps your ass harder.
“Fuck cum all over this dick, I want to feel you” Jaemin beg as he know you were coming close.
“I’m going to fuck you so deep, so my juice stays inside of you” Jaemin breathed. You shut your eyes as you were coming close.
“Fuck I’m coming, I’m coming” you clench your walls and release around him.
Jaemin flips you around and pulls you to the edge of the bed. You stick your ass out and put your legs together. Jaemin dives back inside of you feeling the tightness of your cunt.
“Ugh” He groans as he grips your waist tighter and takes two deep thrusts and releases his juice deep inside of you.
“Fucckkk” Jaemin groans as his body lay on your back, tiredly.
Jaemin flinch as he felt you clench around him. The two of you stay the way you were, breathing heavily.
You felt your cunt area throbbing from the friction of his big cock. Jaemin got up and remove his dick from inside of you. He watches his cum drips down to your thigh.
“Fuck, look at all those cum” He looks at it in awe.
“Are you going to keep staring at it or are you going to help me wipe it?” You said. Jaemin laughs as he looks for a towel. He wipes the cum dripping down your thigh and gently wipes the cum from your cunt.
You hiss as the towel touches your cunt. “Sorry, does it hurt?” Jaemin looks at you. You nodded. Jaemin wipe it more gently and made sure there was no more before wiping his own cock.
“Y/n?!“ you heard your mother call you. You and Jaemin gasp as you both get dressed.
“Y-yeah?” You answered.
“Are you in the jacuzzi?” She asks from the stairs. You threw Jaemin his brief.
“Yeah” you called back.
“Is Jaemin with you?” She asks. Jaemin nodded.
“He fell asleep, what’s up?” You ask.
“Can the two of you come to the living room?” Your mother asks. Your eyes were so wide open, it feels like it’s going to pop out.
“Okay!“ your mother close the door.
“Do you think they heard us?” You ask in panic.
“I hope not but we were loud” you could almost hit Jaemin. He’s never helpful.
“No shit you dimwit were they home this whole time?!” You ask Jaemin as you try to make your hair wet again.
“No, when I came down here no one was home” Jaemin confirm. You nodded as you wrap the towel around your chest and the two of you went upstairs to the living room.
Your mother and your stepfather sat next to each other. The air was so suspenseful, you almost want to back out. You and Jaemin sat on the chair across from them.
The two of you exchange eye contact and Jaemin’s eyes are telling you to calm down. You nodded softly.
“This will be hard to process but we’re getting a divorce” your mom sigh. She looks at the two of you for answers.
You couldn’t say anything. You were sure if you should jump up and down or say congrats.
“Oh wow” Is what you decide to say.
“It’s not working out,” your stepfather says. You nodded. Jaemin stayed in silence.
“If you guys need to talk, just let me know. I’m all ears” your mother says. The two of you nodded.
“If it’s alright with you, can I go hit the shower?” You laugh nervously at this whole situation. They were bound for a divorce, from the way they’ve been fighting all the time.
Jaemin followed behind you and before you could open your bedroom door Jaemin stop you. You turn around to look at him, he looks at your eyes and lips and smashes his lips into yours.
He pulls away a few seconds later, “does this mean we can be together?” He asks.
You look down at your hand which was in his hand. You smile at it and then at him, “you’re going to have to do something about your little girlfriend though” you smile.
Hello World! I am an NCTzen/Czennie, I love NCT so much I have followed them since their rookie days and once they debuted; they saved me from the darkest moment of my life.
I would like to give everyone a warning:
I am not an OT23, OT22, OT26, or OT25.
I am not a 127zen, dreamzen, or wayzennie.
I am an NCTZEN! I follow every member holistically, YES! I do have my biases. But never in my life, I didn't love the boys equally; if you are not up for that do not follow me or engage. I am here minding my own business, listening to NCT music and spreading my love, fondness, and respect for the boys.
