My family wasn’t exactly a normal one. My younger sister and I were raised by a single mom, who by anyone’s standards was a MILF. I’d often hear strangers fucking my mom in the middle of the night. It didn’t really bother me, as she had ways of keeping me happy too. The whole family dynamic rested on sex; favors were repaid with blowjobs, arguments were settled with hate fucking, punishment was sexually dealt. We were taught how to masturbate as soon as we hit puberty; by the time I was a teenager it was like second nature to me.
My sister was a bit younger than I am and had hit puberty a few years ago. She adopted all of my mom’s traits; blue eyes, dirty blonde hair, massive breasts, everything. After a recent discovery, she’s been masturbating more and more. According to my mom, she learned how to squirt. I guess it explains why she’s been so loud. Her ragged moans could be heard all the way from the basement.
I came home from school one day, looking for my practice jersey for basketball. I had a practice that night and I forgot to take it with me. Even before I unlocked the front door, I could hear my sister rubbing one out. God, she was so fucking loud. It usually turns me on, but at this moment her shouts pleasure just annoyed me. I climbed the stairs and slipped into my room. Before I could open my closet to look, I saw my jersey on the bed. I don’t remember putting it there, I thought to myself. The jersey was completely soaked with a sticky fluid. I brought it to my face and smelled it. It reeked of pussy juice. I felt a surge of anger in me. My stupid younger sister has been cumming all over my jersey, I thought. I burst into her room, just as she was about to climax.
“Hey, you could at least knock!” she said angrily as she licked her fingers.
“Don’t you hey me,” I said. “Look at what you did to my jersey.” I held up my soaking wet #9 jersey.
She giggled. “Oh Jacob, don’t be mad at me. It was an accident, I swear.”
“An accident??” I said, dumbfounded. “How the hell do you accidentally squirt on my jersey? I left it in my dresser.”
Her face started to turn red with embarrassment. “Okay so maybe I went through your closet….and took out your jersey. I don’t know, it’s just so hot to think of you while I play with myself,” she said seductively. “Do you wanna play with me?” She said as she turned around on bed, pushing her ass up. “You know how much I like doggy,” she said with a wink.
“Oh god,” I whispered to myself as I unzipped my pants. I really wanted to fuck her, but I was still angry about the jersey. I started fingering her, starting with her pussy. Her back arched as she bit into the covers.
“Fuck my pussy with your fingers Jacob, you know how much I love it,” she said with a moan. I went at it until she was about to climax. Before she could finish, I pulled my fingers out. “What a tease,” she said with some attitude.
“Someone’s getting a little sassy,” I said, as I spread her ass cheeks out. I plunged my fingers into her asshole. I could feel her whole body shudder.
“Oh fuck what are you doing?? Oh my God it feels so fucking good, please don’t stop big brother.” She said with a scream. I could feel the inner dom in me come out. I fingered her ass harder, hearing her shout for more as she came.
“Fuck my pussy Jacob, please. Baby I’m begging you, I want to feel my big big brother in my pussy,” She moaned as I rubbed my cock up against up clit. But I wouldn’t let her off this easy. She needed to be punished for ruining my jersey. I teased her asshole with my cock.
“I’m gonna punish you for fucking up my jersey,” I said.
“Oh wait…what are you-OH MY GOD!” She screamed as I pushed my hard throbbing cock into her tight asshole. “oh my fuck ahhh” she moaned as I slowly pushed in and out. I pushed her head into the blankets as I fucked her harder. I could feel her whole body shake with pleasure and pain. I reached down and played with her clit.
“Jacob you dickhead,” she giggled between gasps and moans. I pushed her head into the blankets again and pushed all the way in. “Ugh baby punish me. I’ve been such a bad sister. I deserve it, cause I’m a dirty fucking whore.” She moaned.
“Yes you are, you’re a little slut and you’re all mine,” I said. Her moans became more ragged as she reached her climax. I rubbed her clit harder as her body arched and ached.
“I’m coming” She screamed as she squirted all over the bed. “Okay really though, I need a break.”
I wouldn’t listen to her. With my cock still in her ass, I flipped her over and laid on the bed, cowgirl style. I wanted to work her hard. I opened her drawer and pulled out a dildo. I pulled my cock out of her ass and pulled her head down next to mine. She couldn’t see what was going on down there. I put the dildo in her pussy and then my cock in her ass.
“Where is my cock,” I asked as I pounded her with the toy and my cock. She shook her head as she moaned. We fucked and fucked and fucked until we came together. I sprayed my cum into her asshole.
“So thats where you put it,” she said as she dismounted. She walked away, with cum dripping out of her ass. “Look, if you ever need to get something out of you, just hit me up next time. Don’t need to go all daddy dom on me,” she said with a wink.
From then on, my sister became my personal fuck toy.
Source: reddit.com/r/sexystories/comments/48njwk/inc_mf_punishing_my_sister