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yoonglazed · 15 days ago

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The Good Kind of Pain

SinB wants and gets a little rough love in her birthday week fic.

Length 2.4K

SinB x Mreader

SinB tapped her feet against the ground, sighing as she watched the clock. She could hear the others still talking. Eunha and Umji were giggling, talking about the movie they were watching. SinB knew if she tried to sneak out, then they would ask her where she was going. The pair had a sense for it; anytime she’d try, they would find out. If she told them she would be going out, then they would ask when she’d return and wait for her. Sometimes, their care annoyed her. She just had to wait; in time, she heard them quiet down, and the TV turned off.

SinB waited a few more minutes before stepping out of her room and walking to the front door, her ear focused on any sound. She stepped out, and once the door closed behind her, she rushed to the nearest elevator, riding it down to the ground floor. SinB smiled to herself, happy she made it out without anyone seeing her. Her mind filled with thoughts about what was to come. Her smile grew larger, and she rubbed her legs together, her hand over her crotch. “No, no. I have to wait. I have to be a good girl.” She said to herself. When the elevator door opened, SinB stepped out, hurrying to her appointment.

It was a short walk away, in an unsuspecting building, with no signage, nothing to tell you what it was. She stepped inside, walking right up to the front desk. “Hello, I had an appointment for 10:30.” The man behind the desk checks his list before nodding and motioning her forward. SinB gives him a soft smile and moves onward, knowing her way around the building well at this point. She moves down the hall, stopping at a particular door. She takes a deep breath before knocking on it.

“Come in.” She hears from the outside. SinB could jump for joy at those words. She opens the door slowly and steps in, taking off her shoes first. The room had a small space for her to take off her shoes and put her things. She stripped down quickly, placing her things in the cubby before reaching into the box next to it and putting on the blindfold inside.

“I’m ready,” she said, her voice quivering with excitement. You came into the entrance and placed one hand on her shoulder, the other on her waist, leading her further in. SinB could feel her thighs slide smoothly against each other, each side coated in her nectar already.

You bring the young woman to a stop. SinB's body moves on its own, trying to kneel before she realizes you haven’t given the order. She purses her lips, waiting for it. The smack she’s expecting comes a moment later, the thundering smack to her backside ringing across the room. SinB nearly moans, the stinging pain felt so good to her. “You may kneel now.”

“Yes, Master,” SinB says, lowering herself onto the floor. She feels your hands leave her for a moment, returning to her arms quickly. Your hands move down her thin arms, moving them behind her back. The cold metal of the handcuffs hit her wrist, followed by the clicks of them tightening. SinB was almost shaking in anticipation; she had been waiting for this all day.

“Open.” SinB followed your order, opening her mouth wide. She didn’t know what you would do next, but felt a tinge of disappointment as you put a ballgag on her. Blind, bound, and unable to speak any longer, SinB could only listen. “Stand,” was your next order. SinB tried, struggling to do so, but ultimately managed. SinB’s breath was growing heavy; it only got worse once she felt your riding crop moving along her body. She shivers, her muffled moans hitting the ball gag. The riding crop moved down her body. You had started at her neck, and you were slowly moving down from there, stopping to give her tits light flicks. SinB recoiled, tilting her head back as she moaned. The nubs on her chest were hard now, the light smacks doing enough. “You’re back, little SinB, and you’re already wet. Did you enjoy the first session that much?” SinB nods quickly, humming a yes to you. “Good, you’re going to be a good girl for me today, right?” You ask, moving your riding crop to her slit, tapping it lightly. “You know what happens to naughty girls.” SinB nods quickly again. She tries to mumble about being a good girl, but the gag garbles up her words.

You walk around SinB, looking over her body. You stare at her ass for a moment, remembering the last time she was here. You move the riding crop to her ass, bringing it back and smacking the thick piece of flesh. SinB’s muffled cry gets louder as you smack her ass with the riding crop again. Her ass begins to turn a bright red as you strike it one more time. Placing your hand on her ass you rub it gently, the stinging pain from the strikes lingers, “SinB, you had so much fun last time when I played with this ass of yours. I think I want to do it again.” SinB shudders at the memory of what you did the last time. “I’ll need some help getting ready.” You say in a slightly mocking tone. You grab SinB’s arm and bring her forward, letting her go as she bumps into a couch. You undo the ball gag and force her to her knees before you. You cup her face, your thumb tracing her lips. SinB opens her mouth slightly sucking on your thumb as you push it into the wet cavern.

“I’ll be a good girl for you, Master,” SinB moans around your thumb. “Can I please get you ready to ruin my ass?”

“You may.” You bring SinB’s head down to your crotch. “Open wide and stick your tongue out.” As SinB follows your command you take your cock and slap it against her tongue. “Lick.”

SinB rushes to follow along, without her hands or sight she had to search for your cock. She used her tongue, sticking it out and hoping to run into it. Once the pink appendage found what it was looking for SinB lapped at your cock, her wet tongue coating your shaft in saliva as she rubbed her head against your cock. “You’re so hard,” SinB mumbled, managing to get her tongue to run along the underside of your cock. Once she was at the tip SinB wrapped her lips around it and moved to take more of it into her mouth when she felt the sting of the riding crop hitting her ass again. “Ah! Master,” she whined.

“Who said you could suck it?”

“I’m sorry, Master. It won’t happen again.” SinB mutters, leaning forward and pressing her face against your crotch. The young woman sticks her tongue out and begins to lick the base. “I’m sorry for being a bad girl and not following orders. I’ll do better, sir.” She repeats between licks. SinB’s chanting stalls as she feels your riding crop rub against her slit.

“Do you want me to fuck your pussy or ass tonight?”

It was a simple question, but it was also a trick. “I’ll be happy with whatever you decide, Master. I’m just a Fleshlight made to be used by you. You can use me in whatever way will make you happy,” SinB answers, her tongue continuing to lap at your cock. SinB shudders as she feels your riding crop tap her slit as you hum.

“Good answer. Now tell me more about what you are.”

“I’m your humble servant, meant to take your cock with gratitude. I am a piece of meat for you to fuck as you desire. I am grateful for being allowed to worship your cock.”

You smile at the blindfolded woman. “You can suck on my cock now.”

“Thank you, Master,” SinB says, kissing the base of your shaft and leaving a trail of kisses as she moves up your shaft. Her soft lips linger at every spot before moving upward and once she reaches the tip she opens her mouth slowly, letting the head of your cock sit on her tongue. SinB bobs her head slowly, gently suckling on the tip before eventually taking in more. You can hear her moan as she takes you in deeper. SinB’s slick tongue swirls around your cock, coating it in a thick layer of spit. “You’re so big, Master. Please ruin me,” she begs, before continuing to suck you off. The taste of your precum hitting her tongue. She dives in, her nose against your crotch as she tries to get more from you. You bring the riding crop down on her ass again, switching cheeks with every hit. “Harder, Master,” SinB mewls as she pulls back.

“You just love it when I play with your ass, don’t you?”

“Yes, Master.” SinB mumbles. “I love it when you play with my ass.” You take a glance at her bare bottom, seeing the outline of your riding crop from the various hits.

“I think it’s time, SinB,” you groan, pulling her back by her hair. You pull her hair up, forcing SinB to stand once more. Pushing her onto the couch, SinB immediately raises her ass into the air, presenting herself to you.

“Please fuck me, Master. Use whichever hole you’d like,” SinB shakes her abused ass at you, hoping you take her quickly. You grab SinB’s cheek, spreading it apart before bringing your cock to her puckered hole. SinB whimpers as she feels the burning head of your cock press against her untouched hole. She tries to push her ass but is rewarded with a sharp slap to her ass.

“Just for that, you don’t get what you want,” You tell her, bringing your cock down to her cunt. You push in without any fanfare, driving your cock deep into SinB. She shouts, her body rocked by the sudden pleasure. It might’ve not been in her ass like she wanted, but SinB was grateful you still decided to fuck her.

You grab her waist and pull her against you as you slam yourself into her, your bodies clapping as flesh meets flesh. “Thank you, Master for fucking my needy pussy.” SinB moans, her head rubbing against the couch cushion with every thrust.

You bring your hand down on her bruised bottom, making the young woman yelp. “Shut up.”

“Yes, sir,” SinB moans, biting her lip to keep herself quiet as you use her body like a fleshlight. Deciding that you would push her buttons that little bit more, you place one hand on her ass, moving your thumb into the puckered hole and using it as a grip. SinB’s eyes flutter, and she hums in approval. It might’ve not been your cock in her, but the stimulation felt good either way. The way your thumb pressed against her walls when your grip tightened drove her wild. SinB clasped her hands together, hoping this pleasure would never end.

She could feel a tightness in her core building. SinB knew she would cum soon, but she tried her best to hold it back. You didn’t help matters, adjusting her ass to a better angle and driving your cock deeper into her cunt.

SinB wanted to shout and moan from the pleasure, but she continued to bite her lip, drawing blood. “Tell me how good it feels,” you command.

Now given the chance to express herself SinB cries out, moaning as loudly as she could as your cock rubbed against her womb. “It’s feels so fucking good,” SinB moans, “You’re so deep, Master. It feels like you're going to tear me apart. Please fuck me harder. Give me that big hard cock.” SinB’s whines were music to your ears. You slapped her sensitive ass roughly as you pressed yourself against her tight body. SinB could feel her orgasm breaking through; her toes were curling. “Cum…” SinB managed to say before you pushed her face into the cushions.

“Cum for me, SinB.” The young woman was grateful for that command; she let go of the tension in her body, her orgasm rocking her. SinB’s tight walls clamped down on your cock, trying to milk you as you continued to thrust.

She began to drool onto the couch cushion, her mind going blank after cumming. You were close, in a few more thrusts you buried yourself inside SinB, smothering her womb in your cum. The heat she felt inside her body as your cum poured in triggered another orgasm in SinB. She cried out, thanking you and begging you for more as you gave her small thrusts to coax the last of your cum out of your heavy balls.

She moaned softly as you dragged your cock out of her cunt. “Thank you for using your dirty little Fleshlight, Master.” SinB mumbles. “I promise always to be a good girl for you.”

You smile and smack SinB’s ass again. The flesh was sore after so many hits, but she loved it nonetheless. “You need to practice more, SinB,” you tell her rubbing her ass. “If you’re a good girl next time and follow every order, I’ll double stuff you.”

SinB lit up at this promise. “Sir?”

“Yes,”

“I’ll be a good girl from now on, I promise. I won’t do anything wrong.” SinB remembered what it was like. The last time you had stuffed her with a dildo whilefucking the other whole. The experience had shown her an entirely new world, and she was desperate to get that feeling again.

“Alright, then in two days you come back here for another session. I don’t want you touching yourself at that time, so you’ll get put in a cage.” SinB whined softly at the mention of being caged but didn’t complain. She would deal with wearing a chastity belt for two days in order to get the feeling of double penetration back. She would be your good girl, your perfect little servant. After putting on the device, SinB left, feeling satisfied with the experience and promise of more.

She returned home, sneaking in to avoid waking the others. It would be only a few hours until the sun rose, and she needed to act like she had gotten a good night's sleep. That was easier said than done, though; she could only think about her next visit and felt desperate to touch herself. SinB’s yearning for more was going to drive her crazy.

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