Becoming Master
Copyright© 2026 by Megumi Kashuahara
Chapter 9
BDSM Sex Story: Chapter 9 - When Kiko confesses she's been in love with her stepsister Rin for six years, everything changes. The kiss that follows sends Rin spiraling—not with horror, but with recognition. As Rin reexamines every moment of their shared history, she begins to understand that what she'd called sisterly love might be something else entirely. Now they must navigate their feelings while living under one roof, knowing their parents may have suspected all along. A tender exploration of first love, identity, a
Caution: This BDSM Sex Story contains strong sexual content, including Ma/Fa Ma/ft Fa/ft Romantic Slavery Lesbian BiSexual School Incest Mother Son Brother Sister Daughter BDSM DomSub MaleDom FemaleDom Polygamy/Polyamory Interracial Black Female White Female Oriental Male Oriental Female Anal Sex Analingus Cream Pie Facial Lactation Masturbation Oral Sex Petting Pregnancy Sex Toys Squirting Water Sports Big Breasts Small Breasts AI Generated
Hikari was completely smitten with Mei Ling. She was like a tiny lovable doll that ate pussy. Hikari had her sitting on her lap in the living room diddling her clitty while she fawned over her. Kissing her all over her face.
Mei smiled and looked to Mioki, her Mommy, seeking approval with her eyes. Mioki’s smiled and mouthed, You may cum.
Hikari started to gently increase her pressure as she drew circles around Mei’s turgid tingle button. Mei started panting, hugging Hikari around the neck. She whimpered twice and came crying out, “Oh gawd!”
Mei slumped against Hikari, her head resting on Hikari’s shoulder.
Hikari begged, “Please. Highness. Please let me have her.”
Mei, still panting, looked at her Mommy anticipating her answer.
“Hikari. Because we share all things in love, I have let you enjoy her charms. But, Mei is my baby girl, I am her mother. Most of all, she is my slave. She belongs to me. I promise you this. I will find you a girl who will be your personal slave.”
Hikari gave Mei a deep, passionate kiss, and said to her, “You’re not mine, but I love you.”
Mei smiled and replied, “I love you too, Sister. Truly, I do,” then hugged her.
Midori stepped into the living room and announced that lunch was served. Kenzo grabbed Mioki’s wrist and held her back. He said just above a whisper, “Do you have someone in mind for Hikari?”
“Yes, but I don’t know her name. I thought Mei and I were alone in the restroom when I peed in her mouth and claimed her, but when we came out of the stall, I saw a girl’s sandaled feet a couple of stalls over. She knows I saw her because we looked at each other through the crack in the door. Whoever she is, is African American. I don’t think I need to find her. I suspect she’ll find me.”
“Why do you think that?”
“Because we weren’t reported. Whoever she is, happens to be is very, very curious. Hopefully she wants to play also.”
“Hmmm, I made the right choice making you, our queen. Let’s eat.”
Mei asked her Mommy if she could sit next to Midori at lunch. Mioki nodded. When she did, Midori’s face lit up, surprised the girl would choose to sit next to her instead of with Mioki. She cupped Mei’s smiling face saying, “Such a precious child. I would like to spend some time with you, Sweetie?
Mei giggled and replied as she laid her hand on Midori’s, “I want that too! After all. You’re my slave grandma, right? Mioki is my momma, and Master is my daddy.”
All sitting at the table could see her words were genuine. Kenzo asked her, “Well, Mei, you seem to have fit yourself into the family seamlessly.”
Mei replied happily, “I am so very happy to be owned by Mioki and to be her slave. It even more wonderful to have a family that loves me and expresses that love for me in the most private and intimate way. We can be naked to each other in every way with no secrets.”
Mioki remarked, “Mei, I am so glad to are mine!”
Under the table Midori was gently stroking little Mei’s thigh. Mei smiled at her and gave a slight nod.
After lunch Midori and Mei did the dishes giggling like two young schoolgirls. After the dishes were finished, Midori took Mei’s hand and led her to her bedroom.
Mei had been naked ten minutes after arriving and had yet to wear a stitch of clothing. Midori pulled Mei into a passionate kiss. When they came up for air, Mei asked, “Grandmamma. I wanna lick your pussy.”
Midori giggled like a five-year-old and climbed up onto the bed, lying on her back. Mei was right behind her. Climbing on top of her, Mei kissed Midori deeply for several minutes slowly grinding her pubis against Midori’s. Mei started kissing her way down Midori’s neck, nipping her earlobe, kissing across her upper chest and stopping to take Midori’s right breast in both hands, kneading the soft flesh as she latched onto her nipple and began to nurse. After suckling for a minute or two, she paid the same homage to her left breast.
Mei worked her way down Midori’s torso, laying butterfly kisses over her entire abdomen.
When she reached her mons, Mei began to lick the entire area. Midori was trembling. She has not had this much attention in six months. Mei scooted down in between Midori’s splayed open thighs. She peeled open Midori’s labia and swiped her tongue upward from her perineum up over her clitty to top of slit. Midori was oozing her nectar copiously and Mei returned and started lapping Midori’s cunt hole vigorously scooping cream by the tongue fulls.
Mei moaned out in-between laps. “Oh Me-maw, your pussy is so delicious!” She went back to lapping cream. She dropped down and rimmed Midori’s anus, trying to push her tongue inside, but to no avail. Mei licked her way back up and sucked her entire clitty and hood into her mouth. With her lips pursed, she bit down grinding her clitty between her clitoral hood, Midori cried out “‘Oh Gawd, Baby! Put two fingers inside me and fuck me!”
Mei slid two fingers into Me-maw’s sloppy pussy thrusting in and out. Midori started rotating her hips up, meeting Mei’s rhythmic thrusts.
“Another! Give me another finger!”
Mei obliged and didn’t miss a stroke, now, thrusting three fingers inside Midori’s slick cunt. Midori starting bucking, quickening. “Oh God, Baby, I’m so fucking close!”
It appeared to Mei she was close, but needed something more. Mei’s fingers were too small. She looked over and saw a dildo of a man’s cock; thick veins and about seven inches long, and she had a wicked thought.
She quickly got up and holding the fake cock against her pubis, shoved forward and started thrusting in and out like she was fucking Midori
“Here, Me-maw, how you like tiny Munchkin fucking your nasty grandma cunt?
“Take it!”
Midori looked up, saw the tiny Munchkin fucking her with her own dildo!
Midori hooted four times, then cried out a deep guttural groan. Her muscles locked the dildo inside her clenching pussy as her cunt muscles spasmed around her silicone friend. When she had calmed, Mei slid the glistening cock out of Midori’s slimy cunt.
Mei knee-walked up and ordered, “Clean all this granny cum off my cock. NOW!”
Midori Grabbed her wrist and started licking. After she had licked and sucked Mei’s cock clean, Mei lay down beside Midori and held her. After cuddling and kissing, Midori admitted with soft tears. “In all my years, I have never cum that hard in my entire life! Thank you, Baby doll. Thank you very much!”
Midori ate Mei’s little quim to three really hard orgasms, then drained her bladder.
When the two lovers came downstairs, their hair looking like the had just walked through a tornado
Kenzo and Mioki looked at each other then broke into a laughing fit.
~ ~
B
sol09-becoming-master-9ahtml6718b858.jpg” width=”195” height=”292” align=”left”> héré swung around, reached into the nightstand bed pulled out a six-inch vibrator. She held it up wagging it a bit and said, “I’m gonna blow your mind, Mistress!”
“Hey Darlin,” Kioko retorted, “just a warning. But if I cum really hard, I squirt.”
Chéré looked to heaven and exclaimed, “Yes! A squirting pussy! There is a God!”
With that, she leaned over putting her face in Kioko’s pussy, peeled her lips open and dove in. Kioko didn’t waste any time either. Chéré came first. She had been wired tighter than a watch spring obsessing about this moment for weeks. She came hard, and squeezed out a little gush of girl cum. Kioko didn’t miss a drop lapping it up like a condemned criminal. Kioko immediately slid her finger into Chéré’s pussy and started finger fucking her with two fingers as she tongue-diddled her clit. She went off again, locking her vaginal muscles trapping Kioko’s fingers inside her as she spasmed on top of her lover. Kioko stopped, letting her recover. Kioko thought If she keeps cumming, at this rate, I’ll never get to cum.
After Chérié was coherent again Kioko slapped her on the ass and ordered, “If you don’t make me cum in the next ten minutes, I’m gonna take a belt to your ass and whip you good!”
The French tart doubled down on tongue-flicking her Mistress’s clit and Kioko was starting to get that “feelin’ really good” feeling pretty quickly. Coming up for air, Frenchie moaned, “Oh Sweetie. You taste soo fucking good!”
Kioko slapped her again and retorted, “Lick Bitch, don’t be talkin’ with your mouth full.”
Chéré giggled and got back to work. She stopped the tongue-flicks and bit down on Kioko’s clit with her lips. The sudden jolt that went straight through her pussy tipped her over the edge. Kioko arched her back and thrust her pussy into Frenchie’s face crying out, “Yes!!
Chéré let her settle for a minute, then Kioko heard the click of the vibe turning on and the buzz. Chéré started by circling Kioko’s clit with her tongue. After a minute, as she continued to circle Kioko’s clit, she touched the tip of the vibe at the entrance to her Mistress’s vaginal opening, Kioko let out a “Yikes!”
After a few seconds Kioko gasped, “Oh gawd! This is gonna be a big one!”
This being the first time feeling the intensity of a vibrator, the vibe was driving her crazy and very quickly to cumming. It wasn’t a minute later, Kioko was panting hard, thrusting her hips up into Chéré’s mouth. She cried out, “I’m gonna cum, uh, uh, uh ... cumming!”
With a guttural groan, Kioko’s muscles locked up, and squirted four strong spurts, drenching Chéré’s face. She started laughing, trying to swallow as much as she could. “Oh, Baby, it tastes sweet!”
Kioko collapsed back on the bed, drained—literally.
After Kioko recovered, they needed to change the sheets. As they cleaned up the mess, Kioko asked her, “I thought you were going to slide it inside of me, why didn’t you?”
“You said Master hasn’t fucked you yet. His cock needs to be the first thing to go into you—hymen or not.”
Kioko giggled and replied, “At least one of us was thinking. After getting things back in order, Chéré recommended they go out and get something to eat.
--- ---
They were all sitting in the living room talking. Mei excitedly expressed her joy at being a part of the Yakamura family.
Kenzo smiled at her and said, “If you’re that excited, why don’t you come over here and give Daddy’s cock some loving?”
Mei giggled as she looked at Mioki. Mioki nodded and said, “Come. I’ll teach you how to suck Daddy’s cock and make him go crazy!”
Both girls moved to the floor and Mioki began to explain. “Now, remember this. You’re not just sucking dick, you’re making love to it. This is the dick that’s gonna put a baby in your belly some day.
“There’s only a few things you need to remember. First, worship his cock with licks and kisses. Second, lots of tongue swirls around the head. Even stick your tongue tip in the slit at the top. Plenty of good, consistent sucking. Third. Jerk the portion not in your mouth up and down as you swirl your tongue and suck.
“Use your hand as a stop so you don’t go too deep and choke. Daddy will tell when he’s getting ready to cum. Now. Just like the video you watched, when you feel his cock start to swell in your mouth. Pull back leaving just the head in your mouth. Swirl and suck. Swirl and suck.
“When he starts cumming, swallow quickly, because he cums a lot and the squirts are big.
“Rule number one in blow jobs: Do not spill a drop! Swallow it all unless he tells you otherwise!
“Think you got it all?”
“Yes, Momma, I’m pretty sure I do. I rewatched the video you gave me a hundred times.”
“Okay, Munchkin, make Momma proud.”
Mei settled herself between Kenzo’s legs, turned and looked up and asked. Daddy. May I please suck your cock and make you feel good?
Mei then started her swirl and suck routine and Kenzo was hyper excited at the visual. When Mei started bobbing her head up and down. Kenzo rasped, “This looks so fucking nasty and illegal! Like an eight-year-old sucking cock! I’m gonna blow soon!”
Mei pulled back doubling her swirling, adding deep suction and Kenzo started to tense. “Oh! Oh! Oh! Oh fuck!”
Mei was right there, jerking his cock and swallowing quickly, then slowly as his micro spurts came until nothing was left but dry spasms.
Mei pulled off his cock gasping and breathing hard.
“Did I do good, Daddy? Was I a good cocksucker?”
He reached down under her arms and pulled her up giving her a big hug kissing her face.
“The fucking best, Munchkin! that was a great, great blowjob! Absolutely fantastic!”
Mei kissed him with tongue, then turned. looked at Mioki and asked, “Did good, Mommy?”
“You made Mommy so very happy! You’re such a good, good girl!”
Hikari wanted another go with the Munchkin, but Mioki said, “Hikari. Enough is enough. We’ve put her through the wringer today.”
Disappointed, Hikari admitted her sister was right.
Now that Mei had fulfilled her ‘familial’ duties, Kenzo turned to a matter that affected the tiny Munchkin.
Now,” Kenzo began, “I want to talk about Mei’s mother and sister. Mei, you said your mother wants to fuck me?”
“I think so, Daddy. She sure looked at you like she does. Mom approved Mioko collaring me enthusiastically--- even knowing Mioki was going to use me sexually. I think she’s jealous of me.”
“What about your sister? Tell me about her.”
“Zhen Zhen is sixteen, she has severe anxiety syndrome. ADHD, and is slightly autistic. Her and I are very close. I’m fairly positive she’s submissive also.
“I taught her to masturbate last year when she caught me. Now, we do each other. She really likes French kissing with me.
“Master, if I may be so bold, Zhen Zhen needs very special care. She could not cope with what I have done today. She would be overloaded. I think Mommy would be a good mommy for Zhen Zhen. Mommy and I talked a little about her collaring my mom and Zhen Zhen. I like the idea. I would love to eat my sister’s pussy. I wouldn’t have any problem eating or drinking either of them.”
Kenzo nodded and looked at Mioki. “Collar them both. ASAP.”
“Yes, Daddy,” Mioki answered as she smiled at Munchkin.
Just then, Kioko and Claudette arrived.
~ ~
The audio loop repeated itself in her head and would not release her.
Mikaela lay on her shelter cot that night, staring at the water-stained ceiling while the other girls breathed around her in the dark, and heard it again: “Open your mouth and tilt your head back. Drink...
“Good girl. Mommy loves you deeply.”
Low, certain, Japanese-accented — a voice that assumed obedience the way weather assumes gravity. She’d pressed herself flat against the stall door, barely breathing, thighs pressed together, and listened to every syllable of what happened two stalls down. She hadn’t meant to stay. She’d meant to flush and leave. But her feet had rooted to the tile and her heart had hammered so loud she was sure the girl would hear it through the partition.
She replayed it until dawn grayed the windows.
By morning she had a face to match the voice — she’d seen the girl before without registering her, the way you don’t register a knife until it’s open. Sleek. Japanese. That subtle
quality of stillness that isn’t shyness but its opposite, a coiled sufficiency that made other girls glance twice at their lockers and then look away, vaguely unsettled. Mioki. She learned the name from a sophomore who said it like a warning.
The other one took two days. The pixie-cut Chinese girl in homeroom, small as a question mark, who tucked herself close to Mioki in the hallway unmistakable quiet of something claimed. Mei. She moved like a girl who had stopped negotiating with the world and found peace in that surrender, and watching her made something in Mikaela’s chest pull taut and ache.
She just turned fourteen. She’d aged out of one foster home and into the group shelter and she understood, in the blunt arithmetic of her life, that stability was a conditional thing — borrowed, revocable, dependent on good behavior and invisibility. She understood what she wanted was strange. She’d understood that since she was twelve, lying in another cot in another facility, imagining a voice exactly like the one she’d finally heard through a bathroom partition. The fantasy had kept her sane through her mother’s disappearance and three placements and the loneliness of being the girl nobody quite knew what to do with.
Fear and wanting were the same sensation, she’d learned. You couldn’t tell them apart until one won.
She caught Mioki between periods, weaving through the crowd with her heart slamming so hard she half-expected people to turn and look. She grabbed the sleeve before she could think herself out of it — silk-soft fabric, and Mioki went still in the secure way of someone who is never surprised but is choosing to be patient.
“You’re the girl from the bathroom.” Mikaela’s voice came out lower than she intended, husky, her face blazing. “I heard everything. I need to talk to you. Please. Desperately.”
Mioki looked at her for a long moment. Not appraising exactly — more like confirming something she’d already calculated. Her eyes were very dark and very steady and Mikaela felt them move over her like a hand.
“Lunch,” Mioki said. “Back stairs. Don’t be late.”
She was twenty minutes early.
The back stairwell smelled of radiator dust and old concrete. Mikaela sat on the bottom step with her backpack across her knees like a barricade and watched the door and tried to remember how to breathe normally. When Mioki came through it she was alone, unhurried, and she didn’t sit beside Mikaela — she stepped past her and perched on the third step up, so that Mikaela had to tilt her head back to look at her. The geometry of it was not accidental.
“Kneel,” Mioki said. Not a command issued at volume. Just a word placed in the air, patient as gravity.
Mikaela’s knees found concrete before her mind finished processing it.
“Tell me what you heard.”
So she did. It came out cracked and stammering and not in the right order — the drink, lick me, make momma cum, the voice, the phrase good girl detonating in her chest, the way she’d stood frozen with her underwear soaked, her pussy gushing and her hand pressed over her mouth. She told the truth because she didn’t have the composure to lie and because some deeper instinct said that lying here, to this Asian girl would be the one unforgivable thing.
“I put myself there, I craved to be there, to drink you,” she finished, her voice barely audible. “Kneeling. I’ve been putting myself there since I was twelve. I want —” She stopped. Started again. “Own me. Please. I’m begging you. I’ll be good. I’ll be so good for you. I know how to be obedient. I’m homeless and shelter life is — I don’t have anyone. My mom’s gone. I’ve been alone for three years and I’m so tired of it and I heard your voice and I —” Her throat closed.
Mioki descended one step. Her finger found Mikaela’s chin and tilted it up, not rough, not gentle — clinical, the way you check an animal’s eyes for health. She held it there and looked for the tremble, the breath pattern, the thing beneath the words. Mikaela’s pupils were blown wide, her lips slightly parted, tears threatening at the corners of her eyes without falling — a girl at the absolute edge of herself, balanced there on bare hope.
“Shirt off,” Mioki said. “Hands behind your back.”
Mikaela pulled it over her head and laced her fingers at the small of her back, her bra and the slight, conical shape of her breasts beneath it suddenly bare in the stairwell’s gray light. She was shaking finely, like a tuning fork.
Mioki took her time. She walked a slow circle, looked without touching for a long moment, then ran her palm once from Mikaela’s collarbone to her sternum — not sexual yet, possessive, the way you put your hand on a door to feel if there’s fire on the other side. She asked about history. The shelter. The placements. What had been done to her, what she’d wanted, what she’d allowed herself to want in the dark of institutional rooms. Mikaela answered everything, her voice steadying as she spoke, as if confession itself was a kind of relief.
“Use me,” she said at last, plainly, the begging stripped back to its bare request. “Piss in my mouth. Make me lick you, suck you, I’ll worship your butthole, your feet, I’ll do anything you say. Call me good girl. I’ll worship you. I’ll be yours completely. I won’t ever give you a reason to let me go.”
Mioki looked at her for a long time.
She was thinking about Hikari — her sister’s want, the promise she’d made. Hikari wanted and needed thrill, edge, a girl who’d push and require breaking. This was not that. This was something rarer: genuine devotion in its raw state, unperformed, embarrassingly sincere. A girl shaped exactly like yielding, with enough fracture lines in her history to understand the value of belonging to something solid. Mikaela wouldn’t need breaking. She was already open. She needed the opposite — to be gathered, held in place by certainty, given the shape that abandonment had taken from her.
She stroked Mikaela’s hair once. Mikaela’s eyes closed involuntarily, like a cat leaning into a hand.
Mei’s little sister, Mioki thought. That’s what she is.
“You’re mine now,” Mioki said quietly to the small black girl. “Not Hikari’s. Mine. Tonight, you will go home with me. You’ll kneel beside Mei tonight. You’ll call me what she calls me. And you’ll earn the rest.”
Mikaela nodded, her face crumpling briefly before she caught it — flooded, overwhelmed, already remade by those two words. The stairwell, the concrete cold through her knees, the dust and the distant slam of locker doors — all of it receded. She was owned. It was the first thing in three years that felt like solid ground.
~ ~
Mioki went to lunch. Mei could see on Momma’s face that she had just dealt with something. “Are you alright, Mommy?”
Mioki told her that the day she claimed her and Mei drank and licked her, there was a small black girl two stalls over that heard everything. She is homeless and begged me to claim her. You now have a sister. You’ll meet her this afternoon. She’s coming home with us. You’ll like her. She is very obedient and humble like you.”
Mikaela was waiting at Mioki’s locker when Mioki and Mei walked up. Mikaela displayed a frightened, very meek persona with her head down, blushing with her shoulders hunched forward with her hands clasped in front of her. Mioki smiled at her and said, “Come here.”
Mioki pulled her to her and kissed her hard, possessive, on the lips, right the in the busy hallway and whispered to her, “You’re mine. And you’re gonna be loved and cared for.”
Mikaela almost fell apart.
“Don’t be afraid, Mioki said,” you only need to be afraid if you disobey me.” stepping aside, Mioki introduced Mei. “Mikaela, this is Mei Ling, your sister slave. Mei, this is Mikaela.”
Mei gave her a hug telling her that she was very pretty, and happy to have a sister slave. The mood relaxed quickly and they walked out together to wait for Kenzo to pick them up. Mioki had texted him and filled him in on the particulars and that she was coming home for dinner with them. When Kenzo arrived, Mioki made the introductions and headed for home. Mioki began to explain what life was going to be like as her slave. You need to know how you will live your life as my slave as a member of my family from now on. Kenzo, who is my older brother, is the master of our family. My mother, me and my two sisters are his slaves. He owns us. That means, he also owns you. Do you understand?
“Kenzo owns you and me?”
“He owns Mei, because she is also my slave.”
“I understand,” Mikaela replied. “So, that also means Kenzo and I will also have sex, right?”
“Correct. He will take your cherry and your anal cherry. At some time in the future, you, me and every slave in the family will bear Kenzo’s child. Do you understand?”
“Yes, I understand and will gladly bear his child to be owned by you.”
Also, no one pees is any toilet at home. We can shit, but we need to service each other. That means we drink each other’s pee. Do you understand?
“Yes, Momma, I understand.”
“Momma?”
Yes, Baby?”
“Momma, I promise I’ll be a good girl for you. I’ll be a very good girl.”
“I know you will. That’s precisely why I claimed you.” Mioki said to Kenzo, “Daddy, there’s something very serious we need to discuss at dinner this evening.”
“I know, Baby Girl.”
They arrived at the estate Mioki took Mikaela and Mei upstairs to her room. She measured Mikaela’s neck circumference for her choker collar, then had her strip and climb into the bathtub. Mioki said to her while she was undressing. “You know what I expect from you, don’t you?”
“Yes, Mommy, I’m going to drink you.”
“And your sister Mei also. Then, Mei is going to drink you if you need to go. Are you ready?”
“Yes. Mommy.”
Mioki stepped up to the tub and Mikaela needed to crouch down. She tilted her head back and Mioki said, “Drink.”
She released her bladder and Mikaela gulped quickly, but drank every drop. After swallowing, she remembered what Mioki said to Mei that day in the bathroom. She peeled open Mioki’s pussy lips and licked her clean.
Mioki leaned down and kissed her deeply and said, “Good girl. Very good girl. Mommy’s gonna love you more than you could ever hope for.” Turning to Mei, she told her to shave her and bring her downstairs nude.
Mioki went to her jewelry box on her dresser and pulled out a short gold chain & heart for her to wear until her collar came in, then went downstairs and ordered her titanium choker to be overnighted. Twenty minutes later, Mei returned holding Mikaela’s hand. Mioki had Mikaela kneel in tower position she said, “Kneel up. Slave.”