A sister is blackmailed by her brother and his friend to be their sex slave.
My Dumb Sister
Chapter 3
By llamaman
Tommy knew that he would have to be careful at school to not get caught being inappropriate with his sister, but there was no way he was going to be able to wait until after school to have her again. Having blackmailed his hot blonde sister Kim to be his sex slave was the best thing he ever did. He was sitting next to her in the car ride to school now. She was wearing her school uniform, which isn’t as hot as it sounds. The school was Baptist, so the skirt was to the knees and the sweater, white button up shirt, and tie hid her curvy body. Tommy had seen her completely naked though and had sex with her 3 times now, so he had no problem picturing her naked whenever he wanted. Hell, he didn’t have to imagine it, he had pictures and video! He looked at Kim and smiled undressing her with his eyes. She looked back at him when she noticed, then back out the window. She adjusted her glasses as the car stopped and grabbed her backpack. Both Tommy and Kim said goodbye to their dad and went inside the school.
Tyson, Tommy’s black friend, was anxiously waiting at the entrance for Tommy and Kim. He licked his lips when he seen Kim, remembering the feeling of her tight white pussy. He had to admit right now she looked like a fucking nerd with those glasses and baggy ass school uniform, but he knew what was underneath. “Hey Tommy and hey baby girl how you doing?” Tommy gave Tyson a fist bump, but Kim walked right past them to her locker. “Bitch” Tyson mumbled after her, he was going to make her pay for that later. Kim got her locker and fumbled to open it. She hated school, but maybe it was better than being home with her brother now that he made her do all those nasty things. She hated the fact that she must have forgot to lock the bathroom door that day when she showered which allowed him to get those nude pics of her and blackmail her. Once she got her locker open a hand came out of nowhere and slammed it shut again. “Oops sorry!” a girl that always bullied Kim named Jackie, said as she continued walking down the hallway laughing with her friends. Jackie had long brown hair and brown eyes, her most distinguishing feature, however, was her height. She was tall for her age which made her more intimidating to her victims like Kim. She wasn’t fat though, she was average weight, and wasn’t unattractive. Tommy had seen the incident and knew about how Jackie was always bullying Kim. He had heard a few rumors though that she was into girls and that got him thinking…
Jackie got to her locker and her friends left her to head to their classes. Tommy decided to take an educated risk. “Hey Jackie” Tommy said behind her. Jackie turned to see the ugly, short, red-headed acne covered, freshman. “What do you want nerd?” Jackie sneered. “I wanted to discuss my sister Kim with you.” Jackie straightened, “What? You going to try and tell me to leave her alone?” Tommy shook his head, “No. How would you like her to be your slave?” Jackie was about to say something horrible to Tommy and dismiss him as trying to be funny, until Tommy pulled out his camera and displayed a nude photo of Kim. Jackie’s mouth hung open as she took the camera and starred. She looked from the photo back to Tommy, then back to the photo again. Tommy could tell she clearly enjoyed what his sister looked like naked. “What’s in this for you?” Jackie asked skeptically. “Well, I want to be able to watch when you two… you know.” Jackie’s lip curled in disgust, “You’re a little pervert, aren’t you?” Tommy shuffled his feet and Jackie continued, her lips turning into a smile, “But I like what you’re offering. I’m guessing the picture is how you’re controlling her?” Tommy nodded. “Bring her to the girls’ bathroom by the gym during lunch. There’s no gym class that period, so it will be just us. I usually smoke there.” Tommy grinned and said he would, then turned and left.
After the rough start in the morning, Kim was actually having a decent start to the rest of her day. The only weird thing she noticed was the way that Jackie was looking at her during math class. It wasn’t her usual evil glare; it was something else. Well, whatever it was Kim was able to ignore her and made it all the way to lunch without another incident. She sat down alone at a table, like she usually did and was about to start eating her bagged lunch, when Tommy came over. He just stood by her, until Kim meekly looked up at him. He smiled and ordered her to follow him. Kim was about to object but thought better of it. She put her lunch back in her backpack and followed her brother out of the cafeteria and down the hall towards the gym. “Where are we going?” she asked. Tommy just ignored her and kept walking. Once they reached the girls bathroom, he looked around to make sure nobody was around and ushered her inside, closing the door behind them. Kim walked inside and came face to face with her school bully Jackie. “Hi Kim” Jackie sneered. Kim went pale as Tommy dragged the garbage can over to reinforce the closed door. “Your brother here showed me your ass naked and truth be told I think it’s a bullshit photo, but I want to know for sure. So, strip dummy.”
All Kim’s security of being safe at school just went out the window and she fould herself in an all new type of nightmare. Tommy said “do it sis or else…” Kim gulped and took off her school sweater. She was reluctant, but let it fall onto the dirty bathroom floor. Tommy started filming. Kim refused to make eye contact with Jackie and instead decided to just stare at the wall. She took off her tie and started unbuttoning her white dress shirt. She untucked the bottom and let it fall to the floor. Jackie’s expression had changed once she saw Kim in just her bra and skirt. She now had the same look she had had in math class. Kim unzipped her skirt and stepped out of it then froze. “Did I say to stop?” said Jackie so suddenly that it made Kim jump. She unclipped her bra and tried in vain to cover her large breasts from view. Eventually she decided on covering her breasts with one arm and taking off her panties with the other. She now stood in front of her brother and her school bully in only her socks, shoes, and glasses. Jackie didn’t ask her to lower her arms, in fact she enjoyed watching Kim squirm.
Jackie walked slowly over to Kim, then took a stroll around her glancing at her ass. “Who would have known that nerdy dumb Kim was hiding a body like this? Come here.” Kim took a step closer to Jackie. Jackie roughly grabbed a hold of Kim’s arms and pulled them away from her so that she could get the full view of Kim. “Now that I’m in on this little secret, you’re going to have to earn my silence. Jackie reached out and squeezed Kim’s tits. She teasingly flicked her nipples back and forth before roughly grabbing them. She then surprised Kim by lowering her head and taking a nipple in her mouth. Tommy was rock hard watching his sister get assaulted by another girl. After a minute of sucking on each of Kim’s nipples Jackie stared into Kim’s eyes and moved closer until their lips touched and Kim felt Jackie’s tongue enter her mouth. The kiss was surprisingly soft and different from the boy’s kisses Kim had recently experienced. Jackie’s hands cupped Kim’s round ass and squeezed it. Finally, Jackie broke the Kiss and both girls’ lips were wet with saliva.
Jackie backed away and was about to remove her skirt when she remembered Tommy was in the room filming. She looked at him and his camera and hesitated. She decided instead to just lift her skirt up in order to remove her black panties. After she stepped out of her panties, she backed up to a toilet stall and sat down. She then lifted her school skirt once again and spread her legs saying, “Come over here and eat this pussy dummy.” Kim noticed that Jackie’s pussy was completely shaven, she didn’t have one hair in sight. Her vaginal lips were parted slightly, and Kim could see a large clitoris. Kim stuttered, “I.. I.. don’t know what to do…” Jackie just rolled her eyes and told Kim, “get over here now!” Kim got down on her knees and crawled on the dirty floor to kneel in front of Jackie. Jackie then grabbed a hold of Kim’s long blonde hair and put her face into her pussy. “Start licking!” Jackie exclaimed. Kim stuck out her tongue and tasted something she never did before. Jackie’s pussy didn’t taste bad, just different than anything she had any experience with. Jackie roughly jerked Kim’s head up and down as well as humped her face causing Kim’s entire face to get quickly covered by a mix of Jackie’s juices and Kim’s own saliva.
Tommy started rubbing the outside of his pants and the wonderful sight in front of him. There was Jackie sitting on a toilet, legs spread wide and his hot naked sister on her hands and knees in front of her eating her pussy. Kim’s beautiful naked round ass and pussy was also on display right in front of him. The sight soon became too much for him to resist and he put down the camera and undid his pants. Hist short fat cock sprung free, hard and ready. He knelt down behind Kim, lined it up with her pussy and slid inside. Kim tried to turn around from the shock, but Jackie held her head firmly in place and kept humping her, clearly enjoying the feel of her warm wet tongue on her cunt. “You sick fuck Tommy!” Jackie said laughing. “I didn’t know you were fucking your sister too!” Tommy just ignored her, enjoying Kim’s tight pussy too much. He grabbed her hips and pounded her hard and fast. Watching Kim eat Jackie’s pussy while he fucked her was too much and he felt himself cumming hard. Ugghhhhhahhhhah!” Tommy grunted as he pumped the last of his seed inside her. Just a moment later Jackie started humping Kim faster and faster, with one hand she held a tight grip on the back of Kim’s head with the other she squeezed one of her own breasts through her shirt. Jackie bit her lip as she felt her orgasm hit and rode out the waves of pleasure. When it ended, she stood up and pushed Kim away from her. “Fucking slut” Jackie said as she picked up her panties, put them on and left the room. Tommy pulled up his pants and zipped them. “Well it was nice of Jackie to give you a free lunch” Tommy joked as he left the restroom next. Kim stood up and looked in the mirror, she was a mess. She felt some of her brother’s cum run down her leg. She gathered her clothes and got dressed. Then did her best to fix her hair. She went back to her lunch table and was able to get down just a few bites in before the bell rang.
The rest of the school day for Kim was uneventful. For Tommy it was pretty tame as well, except for showing some of the nude photos of Kim to some of his closest friends during class. Tommy was bombarded with requests to come to his house after school to see his sister in person. Tommy smiled with pride. He loved all the attention he was getting because of his hot sister. When the bell sounded the end of school, Tommy huddled outside with two of those friends waiting for his dad to pick them up. He had agreed to rotate his friends taking two a day. His best friend Tyson of course was with him and another friend named Sheldon. Sheldon was a computer nerd that never even kissed a girl before, but like the rest of Tommy’s friends, was obsessed with sex and porn. Sheldon was a tall lanky white kid with shaggy brown hair and a lot of acne. He was addicted to masturbation and did so at least 5 times a day. At least twice during school he would rub one out just by touching himself under his desk. Normally, he would just close his eyes and think about sex, but today he had jerked off to the pictures Tommy had shown him. He had begged Tommy to let him be one of the ones he picked to come over today, even offering Tommy one of his new video games. It was easy for Tommy to agree since none of his other friends could make that kind of offer.
When Kim came out of school to reluctantly join them to wait for their dad, the group leered at her, Tyson even licked his lips. Luckily, she was saved by the nearby honk of a minivan that had their dad smiling and waving from the driver’s seat. They all piled in and drove to their house. The ride was eerily silent, except for Tommy and his friends whispering things in each other’s ears and then looking at Kim and either laughing or smiling. When they got home, Kim dashed to her room and locked the door. She changed into a pink T-shirt with a white rabbit on it and some white shorts. It was only a few minutes later when she heard a soft knocking on her bedroom door. When she opened it, there stood her brother and his friends. They didn’t wait for an invite and just walked right in. “Hi sis” was all her brother said as he sat down on her bed. Tyson went right up to her and planted a sloppy tongue kiss squeezing her ass hard, while Sheldon just watched wide-eyed from the back. “Since it’s risky fucking while mom and dad are home, we decided that we would each take a turn with you in the bathroom” Tommy continued as Tyson finally broke the kiss. “Tyson will get you warmed up for Sheldon, since I already got to have you at school today. I know I don’t have to remind you, but just in case you forgot, you’re to do whatever they tell you.” Kim just looked down at the floor and nodded.
Tyson grabbed her hand and peeked around in the hallway to ensure that her parents wouldn’t see both of them go into the bathroom. Sheldon and Tommy started playing the new video game Tommy was given. Once the coast was clear, Tyson pulled Kim down the hallway to the bathroom and roughly pushed her inside, closing and locking the door behind him. He looked at Kim with a tint of anger in his eyes, “don’t ever disrespect me in public again. In fact, you and I are going to start dating publicly. Now strip bitch.” Kim sighed in defeat, before lifting the pink shirt up and over her head. Tyson started removing his clothes as well but watched Kim strip eagerly. She unclipped her bra and placed it on the floor gingerly. She then put her fingers into the elastic waistband of her shorts and panties and took both off together. Tyson flew to Kim and started touching and rubbing her all over. His hands went into the crack of her ass, up her back then around the front of her to her chest. He squeezed both of her large breasts roughly, before finding her nipples and pinching them. His tongue slipped into her mouth and he let one hand trail down through her pubic hair and rubbed between her vaginal lips feeling some wetness, he slipped a finger inside, which made Kim moan. He then took a hold of her hair and pulled her down to her knees. “Lick my black balls” Tyson whispered. Kim, unsure exactly what to do stuck her tongue out and began licking. She noticed they were very salty, and the smell of his crotch was almost overwhelming. After a minute or two of ball licking, Tyson bent the head of his cock downward and shoved it inside of her mouth. Kim started sucking naturally, and Tyson through his head back and let loose a grunt. He took a hold of both sides of her head and started forcing more and more of himself inside her. When she started gagging, he pushed deeper, until her lips were resting against his balls. After a few strokes he pulled out and ordered her to turn around and arch her back.
She did as she was told, and he placed his throbbing erection and the entrance of her pussy and shoved it home. Kim gripped the shower curtain for support as Tyson began thrusting mercilessly. Her large hanging breasts bounced back and forth with each hard thrust. The sight of them soon became too much for Tyson and he reached out and held her tits tightly as he fucked her. He could feel his orgasm building, so he picked up the pace and released his load deep inside her while holding her hips, until his orgasm completely passed. As Tyson put on his clothes and zipped up his pants, he told her not to bother getting dressed. “Sheldon will be in next and you better give him a good time.” As he left the room, Kim picked up a nearby towel and used it to cover herself. Even if it were only to be temporary, covering herself at all made her feel better. She felt some of Tyson’s cum run down her inner thigh and drip onto the bathroom floor.
When Tyson got back to Tommy’s bedroom, he had a big smile on his face, as he said, “Shit is good.” Tommy just smiled as he used a special powerup move in the game he was playing with Sheldon and got a knockout. “Damn it” Sheldon said as he threw down the remote. Tommy responded, “It’s alright, go see my sister and she’ll make you feel better.” Tyson sat down on the bed and said, “Yeah go cause I want to try this mother fucking game out.” As Tyson and Tommy started a new round, Sheldon gingerly made his way out into the hall. He almost tiptoed down the hall to the bathroom. He didn’t think he was ever as nervous before in his life. He wasn’t just nervous though, he thought of the naked picture of Kim he had seen and yearned to touch that hot body. He felt his cock twitch in his pants as he turned the handle on the bathroom door, went inside and closed it behind him.
Kim was standing in a corner with the towel wrapped tightly around her. Even wearing the towel though, Sheldon thought she looked beautiful. “Tak… Take it off” he stuttered. Kim paused only a moment before squeezing her eyes tightly shut and letting the towel drop. Sheldon could not help but let out a small gasp. He stared for a moment before he reached out and started touching her perfect large breasts. Kim just kept her eyes closed and looked away. Sheldon didn’t care. After playing with her tits with his hands for a bit he lowered his mouth and took a nipple into his mouth. He found it to be the most wonderful feeling to suck on a girl’s tit. After a few moments of going tit to tit suckling. He backed away and unbuckled his pants. He kept them on but had them lowered to his ankles. “Suck me” he said softly. Kim let out a sign and opened her eyes before she dropped to her knees and put his small thin cock in her mouth. The cock twitched as soon as her tongue swirled around it and stiffened further. She started bobbing her head back and forth hoping that if she made him cum he wouldn’t fuck her. She started to go faster and faster as Sheldon held onto a towel rack for support. He was getting close to cumming but somehow found the strength to push her away. “Lay down and spread your legs” Sheldon whispered. Kim, sadly, did as she was told. As Sheldon got between her legs and pushed his cock inside her. He put his arm behind her head on her shoulder for support and started pumping away. After about five minutes there was a knock on the door. Sheldon gave Kim a look and continued fucking her slowly. “Yesss” Kim stammered. “Kim honey are you almost done? I have to go” came her dad’s voice. Sheldon started pumping faster and faster and started to cum inside her. “Yessss” was all Kim was able to say in response. “OK, thank you” her dad replied as he walked away. After Sheldon finished cumming, he said “That was amazing” and grinned stupidly before pulling his pants back up.
For the next hour, Kim was left alone. She ate her dinner and watched TV in her room. Kim couldn’t believe the horrible situation she found herself in. It just seemed to be getting worse and worse. She was having trouble even trying to remember the number of guys that had either came in her mouth or had sex with her. Suddenly there was a knock on her door, which made her jump. Tommy came in without waiting for permission. “The guys want you to come to my room and spend some time with them…” Tommy said then turned to leave but stopped and added “Oh and wear a skirt with no panties and remove your bra.” Kim nodded sadly and found a black skirt to put on and removed her bra, keeping the pink shirt on. When she entered Tommy’s room he was sitting on his bed and Tyson and Sheldon were busy gaming on the floor. Tommy gestured for his sister to have a seat next to him. As soon as she did his hand flew up under skirt and started rubbing her pussy. Kim gave him a look of shock since the door was still open. “Now sis we don’t want mom and dad to catch on and having the door closed with a bunch of boys in it might give them the wrong idea.” He kept rubbing her pussy and then put 2 fingers inside her before whispering, “even if one of those boys is your brother.”
After a few moments of fingering, and Kim biting her lower lip to stay quiet, Tommy switched places with Tyson. Tommy started gaming with Sheldon and Tyson wasted no time inserting a few fingers inside her. Kim couldn’t be sure but thought it was at least 3. “You’re nothing but a fucking nigger whore” Tyson whispered in her ear before sucking on and licking her earlobe. After a few moments of fingering, he pulled his fingers out and placed them in front of her mouth. Kim shook her head, but Tyson gave her an angry look and she eventually opened her mouth and let him put his fingers in her mouth. She tasted her own pussy over Tyson’s coated fingers. After she cleaned his fingers, both of his hands disappeared under her T-Shirt as he started squeezing and mauling her breasts. He then pulled her closer to him and started making out with her. Tommy looked back to watch, which allowed Sheldon to do a finishing move and win the game. “Shit!” Tommy exclaimed, which caused his dad to yell back “language!” from down the hall. “Sorry!” Tommy yelled back before getting up to turn off his system. “Let’s all watch a movie instead.” Tommy put on one of his favorite horror movies, turned off his light and sat on his bed next to Kim. Sheldon also joined them on the bed. The room was dark except for the flicker of the light coming from the TV.
Tommy got an idea and had all four of them get under his covers. Sheldon scooted up close behind her and rolled up her T-shirt to free her tits, while Tommy and Tyson both pulled down their pants and took out their cocks. They then each took one of Kim’s hands and placed it on their cocks so she could jerk them off while they watched the movie. Kim had trouble even focusing on the movie since Sheldon was getting very rough with her nipples, groping her from behind. He was pulling, pinching, and twisting them. He would bounce her breasts in his hands and then treat them like he was milking cow udders. She also had to keep jerking off both cocks, if she slowed down or stopped, they were quick to remind her to get back to work. The cocks were very hard and erect as she stroked them. At one-point Tyson suddenly stood up, took a hold of a handful of her blonde hair, and put his cock in her mouth as cum erupted from the tip. Other than letting loose a soft grunt that was overpowered by the movie playing he did a good job remaining quiet. As soon as Kim swallowed all his cum, they were quick t get back under the covers. This time, Tyson took a seat behind Sheldon and Sheldon took out his cock for a hand job.
For the next hour, the three boys took turns getting hand jobs, feeling Kim’s tits, and cumming in her mouth. At one point their dad did poke his head in and ask if anybody wanted some ice cream for dessert, but everyone looked innocent with all the action taking place under the covers. They all said, “no thank you” and when their dad walked away the play continued. After Tommy shot a load in her mouth, which she swallowed obediently, he said he’d be right back. After a quick dash to the kitchen then bathroom, he came back in holding something. “Look sis I got you a snack after all.” He held up a large cucumber in one hand and some baby oil in the other. The other two boys cheered knowing exactly what he had in mind. “Lay back and spread your legs” Tommy ordered. Kim’s eyes went wide, but she did as she was told. Tyson closed the door more, leaving it open just a crack as Sheldon ripped the covers away and turned up the volume on the TV. There was Kim with her pink T-shirt rolled up to expose her fabulous large tits, and the black skirt riding high on her waist. With her legs spread, her pussy was fully on display. The three boys took in the sight sharing stupid grins with one another before Tommy came forward with the cucumber.
Tommy poured baby oil all over the cucumber as Tyson poured some on his hands then rubbed them all over Kim’s pussy. “Sheldon you want to do the honors?” Tommy exclaimed. Sheldon grabbed the cucumber out of Tommy’s hands, placed it at the entrance to Kim’s pussy and started working the tip in. More and more of the cucumber disappeared inside of her as Kim bit her lip once again to remain quiet. Sheldon started moving the large cucumber in and out, fucking her with it. Tommy and Tyson knelt on either side of Kim and each started sucking on one of her tits. Kim couldn’t help but feel waves of pleasure go through her body and instinctively she started humping back to meet the thrusts of the cucumber. “Fucking slut” Tyson whispered, which made the other two boys laugh. Sheldon continued to mercilessly fuck her with the cucumber as Tyson and Tommy licked, sucked and nibbled on her nipples. She felt her climax approaching and with a load moan came hard. Her nipples were rock hard as her body convulsed in small spasms. Sheldon slowed the cucumber down and eventually removed it as her orgasm passed. “Man Tommy, you weren’t kidding your sister really is a slut” Sheldon whispered. Kim’s face turned beat red as she lowered her skirt and T-shirt covering herself as Tommy just grinned back with pride. As great as it felt blackmailing his sister into sex whenever he wanted, he knew it would be even better if he could turn her into a willing slut. He felt that each time he made her cum she was taking another step in that direction.
The movie ended shortly thereafter, which meant it was getting late and it was time for his friends to go home. Sheldon thanked Tommy for letting him come over and expressed how his sister was worth the trade of the video game. Sheldon thanked Kim awkwardly, before giving her breasts one last squeeze through her shirt. Tyson was more assertive, he pulled Kim close to him, lifted her skirt and squeezed her bare ass cheeks while his tongue found its way into her mouth. After a minute or two he broke the kiss and told her that everyone will soon know that they are dating at school and to get used to it. As the two left, Kim was left alone with her brother. “Nice job today entertaining everyone tonight sis, I think they definitely enjoyed themselves and you earned me a pretty cool game.” Tommy looked her up and down. “I like this look on you. It gives us easy access too. From now on whenever possible you will wear a skirt with no panties and a shirt with no bra.” Kim nodded and started to leave the room, “Tommy it’s going to be like tonight from now on isn’t it?” Tommy looked over at her and smiled, “Yes, it is.”
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