My 2 jealous sisters

Note : This story is completely fictional!

I had woken up for another morning at my dad’s house with hormones flaring as usual. I was on the bottom bunk and my stepsister, on my dad’s side, was on the top bunk, hopefully fast asleep still. I had wanted to jack off without her knowing about because if she knew she’d want it, and me, all over again. 

Her name was Justine and basically she was a 18 year old with hormones budding. On either side of my family, my mom’s or my dad’s, I was the one with the most charm and attraction, and she was one of 2, 3 if you counted her mom, who was intent on letting me know all the time. She was a curly redhead with beautiful green eyes, a tall 5’, 10”, 120 pound figure, a small tease of a mouth that, deceivingly, could swallow almost anything and suck start a Harley, and a libido strong enough to wear out Brittany Spears, John Holmes, and Ron Jeremy combined. She was into a little punky, like a bad and dirty girl, but she was completely cunning and totally sexually driven. We’d been having sex together about a month now; a couple of times in making her feel better over her jealousy 
Our parents, her mother and my father, had never officially gotten married but still lived like they had for a couple of years now. He was very conservative in his rules and values, which included no sex with anyone who was a stepsister. On my part I didn’t actually have too much of a problem with that as I could look and not touch, most of the time, but she’d had a crush on me from the beginning and I returned the obsession in looks and thought, but rarely ever touch. She had chased me, both physically and metaphorically, many times through our more forbidden romance, which usually ended in her pushing forward, and sex ensuing or us flirtatiously having to break off whatever we were doing. She somehow always was able to carry herself maturely, except closely to me, but still managed to look a little underage, which made for the perfect combination. 

Her only real competition was my stepsister on my mom’s side of the family, a girl whose family had married into mine a long time ago. We’d grown up together, mostly, and over the last couple of years we’d been sleeping together and fucking each other’s brains out. We started when I was almost 19 and she’d just turned 18, not that that had kept us away from messing around and experimenting nearly to the point of climax before hand. Janet was a straight haired blonde a little shorter, but no bigger around the waist, than Justine with deep blue eyes. Mom approved of it when our consciences got to us and we told her what had happened after the first time. Something about hoping this would happen so we could make something of our family and dad wouldn’t keep me on his side or something. 

So, anyway, there I was trying to slowly, or at least quietly, beat off on the bottom bunk while thinking about the girl on the top bunk. She’d worn a red, silk nightgown and a G-string to bed just to watch me squirm and see what I would do. It had taken me a little over an hour to get rid of a hard on before bed and, upon waking up; I had felt like I’d just been nearly fucked to death, as I was so stiff. Keeping my mouth quiet wasn’t too much of a problem, less than I realized, but my strokes seemed so slow and painfully agonizing that I sped up some and heard her move. I stopped to wait and find out if I had woken her up, but was right back to it when I heard nothing more from her. Moments before a likely climax she bent her head over with a smile and her long, curly hair followed. 
“Hey, babe, need some help down there” she asked staring at the half visible cock which was only half hidden from her view by my blanket. “That’s okay. I can manage by myself, thanks” I said hoping she’d ignore everything but the feeble and embarrassed attempt to hide my lust for her which sounded in my voice. I was always so confused at times like these because as much as I wanted her I didn’t want our father to come in at the wrong time. 

She decided to be nice and tempted for a while. “Well, do you mind if I watch for a while then” she asked so pleasantly as if interrupting something simple and normal to go to the bathroom. “That’s okay, but wouldn’t you rather rest and relax up there without watching your brother play with himself” I asked. “No, I’d rather watch and see if I can be helpful. You know, give you a reason to explode” she smiled like the sex fiend she was and wasn’t going to take a turn down this morning and chances were if she could get into bed with me she would at the first chance she got. I went back to what I was doing, half deflated out of shock and worry, but that same worry and suspense also helped to build me back up. When she couldn’t stand it anymore Justine dropped down, climbed on top of me, and kissed me good morning. “I guess you’re pretty horny now, huh? Who or what are you thinking about?” she asked as she lay on top of me while I tried to suppress my raging boner. She also knew I didn’t lie much. “Well, uh, sis, I” I stammered. “It wasn’t me on your mind, was it” she ground her mound into mine making me moan as her face held a look of mock surprise and excitement. When I couldn’t answer Justine knew I was trying to relax myself physically and wouldn’t let it go. 

She gave me another short kiss and started chanting, in a whisper, “I know what you want” before shoving, virtually bucking, backwards and onto my cock to my surprise. “Sis, we can’t so this right now. If dad comes in here and finds us in this position we’re fucked” I explained to her. “I know we are” she mocked me again with a big and sexy smile. I looked at her pleading as she had my arms pinned above me keeping us moving in constant motion. She threw her hair to my right and kissed and nibbled my neck. What little I tried to fight the situation was to move slide my cock most of the way out of her, to which she let me think I was winning before slamming her pussy back down hard to my balls. She was always such a tease and she knew it turned me on. The more often we did it like that the more likely I was to cum in her. Again you have to remember she was practically obsessed with sex and I’d likely get it later on too. 

As our moans got louder and louder we swapped positions and threw the blanket over us. Then the door opened and dad walked in.-covered head to toe and stile inside her I waited for on him. “Son, what are you doing down there? I thought I heard your sister’s voice. Have you seen her?” he asked. Justine still slowly rose her hip onto my cock to keep me needy and hard while she blew in my ear, making it all the harder to answer with a straight voice. “No, I haven’t dad. I think she went outside early this morning to take a stroll or something, unless maybe she’s in the bathroom” I answered hoping to buy enough distraction time to cum and get us in order. “Is someone down there with you? It had better not be your sister. I know you 2 have had a crash on each other a while now, but she will be family soon and you know sex is out of the question” he told me for the hundredth time. “No, dad, it’s a blow up doll with a voice and vibrator” I did my best to hide the secret as my earlobe was being nibbled and I close my eyes against the amazing sexual pressure building up in my head. “Well, that’s good. Better a blow up doll than a family member” he explained and left. 

“You crazy slut, you almost got us caught. Do you realize…” I couldn’t finish my sentence as she pumped our bodies together by entertwining our limbs. She smashed our bodies together until we both saw blissful stars and were just short of orgasm. Then she wrapped her arms around me as I got up on all fours and swung away against my body as we both came in earth-shattering orgasms. I had to drop halfway through mine. “There now. I think we both needed that. I doubt your other sister can do as good as that anyway” she added with a sarcastic, but happy, smile. 

Throughout the day we flaunted at each other a little here and there behind our parents backs. Whether it was her reaching into my pants at opportune moments to rub my cock and balls, or slapping my ass when I came near her, or even my stopping her for a kiss and grabbing her ass with both hands while we were on the side of the house. I teased her there by breaking it off and leaving before she could. 

An hour before we all left to take me back home Justine had to use the bathroom and, when she supposedly found there was toilet paper in there, she called me over. “Hey, Chad, can you get me a roll of paper towels, please” she called out, so I went and found one. When I brought it back and slid the door open just enough to leave it on the counter I heard her tell me not to. “It’s too far for me to reach. Can you please come in and hand it to me” she explained her bad position. I knew she was right because the distance to reach it would make her get up and mess something up so I walked in. I didn’t smell anything except for her perfume, a scent she’d found out last week really attracted me and decided not to use in moderation. Having changed she was in, presently, a very thing and skinny tube top while her jean shorts were on the floor. No underwear whatsoever. As I turned the corner to hand her the roll I found that there was already a roll on the dispenser. That little slut had tricked me again. “Uh, sis, there is already a full roll right there” I looked at her questioningly to which she looked at it, looked at me, and gave a sexy little giggle. “So there is” she said through the laugh then motioned me to come to a stop right in front of her. 

It was after dinner and both parents were watching TV, so without any fear she unzipped the shorts I’d been wearing and took my limp dick into her mouth. Justine sucked it soft at first, knowing I like a lot of foreplay whenever possible, then made a pressure vacuum with her mouth the harder I got. Stopping from blowing me, her hands still jacking me off like crazy, she looked up at me and explained “this is for that dirty teasing kiss you gave me earlier today, babe. That was no fair and I’m going to make you pay for it, sexy”. She was almost an expert having blown me for 3 orgasms a day once in her jealousy over my other sister. She got me harder and harder as I was standing up, taking the time an care to tease my eyes, nibble my tip, lick and jiggle my balls in her hand, and even pull my nut sack down a few times in a rough manner. My cock was throbbing and the full load of my balls would blow any minute promising to go all the way down her throat in the first shot. The overwhelming need to come hot on my gasping breath and she was fully ready and intent on taking me all the way….

There were a few knocks on the door. “Justine, honey, you in there?” it was her mom. I was right at that edge where only one or two more strokes would have done it, thinking any split second now I was going to cum, and she stopped. “Yes, mom?!” she answered. “I need to use the bathroom, honey. Is it safe, can I come in” she started to open the door. “Hold on, mom, I’m not dressed yet” Justine looked around for a solution as I jumped into the bathtub next to the toilet without a sound. As her mother came in she remarked “it smells like sex sweat in here. What had you been doing, honey?” “I’m sorry. This is so embarrassing, but I’ve been jacking off” she told her mom. “That’s okay. I understand, just don’t hold the bathroom up when you do it. May I ask who you were thinking of” the older voice inquired. “I was thinking of my brother. He’s just so cute that if he weren’t my brother I’d…”she let her voice trail off. “I know what you mean. He is cute, but he is still your brother. That’s the rule. I’ll bet he’s young and energetic enough to wear a girl out, if he ever got himself a girlfriend” she told her daughter before they switched places and sis left. 

I was still in the shower, waiting along the most hidden wall so I wouldn’t be noticed and hoping, with a viagra like feeling, that I would be able to make it out without getting caught. “Chad, you can come out now” she called quietly in the little room. I peaked around the corner and our eyes met. “How did you know? I tried to stay quiet” I asked in disbelief. “That little girl of mine has been wanting to fuck your brains out since the first day you met, and the only things I smelled in here were sex sweat and perfume. Now come around the corner” and I did as instructed, my cock still reaching and my shorts still down. 

She grabbed for my cock and began stroking it. “How close did she bring you?” she asked before feeling for herself. I tensed at the pleasure and she nodded, then put her mouth to my tip and jacked me off. In about the time it takes to piss I was cuming like a geyser as she closed her eyes and kept working on me until every last shot was out of me. When we were done she looked at me sternly. “Now, don’t ever let me catch you fucking my daughter again. I won’t save you next time. I only did this time to steal you away and warn you because if I was your dad you’d be in a sling” then she reached up, kissed me on the lips, and sent me out while she did whatever she had to. I swore to myself that I’d still allow myself to get laid, but she’d never catch me fucking her daughter again. 
Once I got back home, my moms home, The 2 daughters eyed each other for a while before Janet offered, with a fake smile and charm, to take Justine back to her room for some girl talk. I knew what was going on anyway, even if, for obvious reasons, the rest of the family thought they were getting along just fine. I had nothing else to do so I followed them in, as I knew some form of a catfight would erupt. As I got in there I watched Janet stripping down for bed, the one we shared here, while my other sister could only watch in jealous disgust. As long as the one sister was in her bed and under the covers, with me there or not, stripped or not, no one else who cam in could say anything. At least as long as it didn’t appear anyone was having sex, which was what Janet intended one way or another to give me with my other sister in the room. “So, Chad, did you have a good time? Did she make you screw her brains out again? Huh?” she got right to the point before sucking my index finger. “Yeah, I did. So what you little tramp. You want to make something of it because I’m just going to hump his brains out again and again” Justine got all pissed and pouty. “Did you do it willingly?” she asked me and I nodded because, technically this morning I hadn’t, but I wasn’t about to tell her the immense pleasure I got from that. 

“You know, we should just put him in the middle of a pussy testing contest. We could just see who’s tighter, but I’d bet he’d come in me first as I haven’t had to fuck him everyday that I’ve seen him like you” She gave a holier than thou tone. On hearing this the one I’d been with all day came up to me on all fours on the bad and kissed me while rubbing me through my shorts. Something odd in their moods had changed though. Something I couldn’t quite put my finger on. “Come on, big brother, get in bed behind me” Janet ordered me with a deep kiss following. I stripped and got under the covers behind her. With help I guided my love-maker right up into her and let it rest there. 

Then, in the middle of a cat fight that would have had an obvious victor My slightly younger sister got right in the other ones face, teeth gritted, and kissed her. I couldn’t believe it, but was worked up again for the last time and started fucking Janet side by side on the bed from behind. Lowering the covers some they played with each other’s nipples. I realized what had been different, not quite believing what I was seeing. They had been so worked up and horny that the sexual tension between them must have finally broken. I never had never known either one was a lesbian, I just knew they both wanted to keep me away from each other. 

Watching the two I fucked Janet hard but quietly as the two went to real work on each other. Justine went up the bed and my other sister began eating her out like a pro. Both convulsed and convulsed, and shook again. As they tried to conceal their lust for each other both of their voices remained quiet but their bodies writhed twice as strenuously as they usually did. At one point I thought Justine would scream her orgasm as tears welled up in her eyes and she bet her back like an athlete. 
When the tension in me built enough from watching the two I spent everything I had.