Caught in a Secret Incestuous Affair with My Sister After Discovering My Dad's Mistress

I Saw You

By Blueheatt

…..These were the last words I ever wanted to hear from my sister Linda. My dad’s girlfriend Stella got careless. Sis saw Stella and I fucking in my pickup in the driveway late one night. The street light gave her second floor window just enough light, to look down and see us fucking. I had her dress up and her panties off in the front seat of my pick up. Sis could see my ass fucking away hard on her, thru the windshield.

Now what to say to her statement. She smiled like she was so clever and had put me in a real tight spot. She was 3 years older than me and had divorced and moved back home in her old room.

I think I knew what was coming.

She had teased me ever since I could remember. She loved to make me horny by rubbing up against me, talking about sex to watch me get a boner, adjusting her bra over and over while I watched. She would leave her bedroom door open as she dressed, and undressed when she knew I was close by. She would yell at me from the shower to bring her something, letting me see her a little naked. “Oh Sonny…could you unhook my bra?….could button the back of my dress?…she would say.
The hardest was when she would come in my room at bedtime, wearing a very skimpy nightie, no bra, no panties and sit on my bed. She would rub her legs, tits and a little pussy rub as she talked about nothing.
I wanked thinking about her many times, and I think she knew it.
I tried to ignore her, and never made a move on her. This just seemed to intensify her little game she liked to play. Now she had something to hold over me to get me to do anything she wanted me to,…. so she thought…..

I said: “Let’s go up to your room.” She got a bigger smile and wiggled her ass up the stairs in front of me.
I sat on her bed as she laid down in her long sheer night gown. She lifted one leg up to expose her no panties upper legs.
I said: “Ok…what’s it gonna take to keep you quiet?” I already pretty much knew her answer.

She surprised me at first. She said she was actually happy for Stella and I, because Stella wasn’t getting any sex at home…until now. Dad hooked up with another woman. He spent almost all his time at her place. This was right after sis left and moved in with her boyfriend.

I always wondered about the timing of that.
Stella hung on to me and I slowly became her fill in lover. It was all kept very discreet and quiet…but….she was a wild woman in bed. She let loose with all the things dad didn’t do. He had stopped having sex with her and spent a lot of time at his new girlfriend place.

Sis asked how Stella and I started having sex….

It started late one night. Stella asked me to give her a back rub. She lay face down on her bed and was naked except for a towel around her. She had a beautiful body. Hot legs, a firm ass, and nice tits. I tried not to react but I got hot rubbing her back. She removed the towel and said to keep going. Now I was rubbing her ass and legs. She opened up her legs wide exposing her pussy. I tried not to look but my eyes went right for it. She began to moan. I got a huge boner in my boxers, I couldn’t help it. Then it happened. She rolled over naked and whispered: (“..now do the front..”). She saw my big boner and began to breathe hard. I started rubbing her legs first. She put both knees up. Now her pussy was wide open and I could see everything. After a while she reached out and grabbed my hands and pulled me up on top of her. She whispered again: (“..now let me rub your back.”) I didn’t have a shirt on and her tits were now under my bare chest. My boner was resting right on her pussy. My boner was trying to cum right then. We lay there a while, both breathing heavy when I felt her thumbs slide inside my boxers at my hips. Her legs began to open wide.
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Sis lay on the bed as I told the story. I watched her breathing increase, and her hand played with one of her nipples. Now I was making her horny, for a change.

I continued with the story, but first she interrupted me to ask if Stella had said anything about dad’s ‘other women.’
I said no…but I lied.
Stella told me she always thought something was going on with dad and sis, but she had no proof.

I continued….

Stella started inching down my boxers until my boner was free. Now my boner was firmly laying pointing up and right on her clit. It felt again like it was going to cum. She rubbed my back so hot but just kept going. She began to rub my butt cheeks and let her hand dive between my legs. She felt my balls as she and I were really gasping for air now. She was breathing right in my ear and little moans started in. Her hands started moving all over me, running her fingers thru my hair and squeezing her knees together against my hips. I could tell she want to fuck bad, but held back. I felt my hands come up and feel her big tits. It was an automatic reaction. I was hurting I was so aroused. I closed my eyes and pretended she was my girlfriend, only with a better and hotter body. She started slowly lifting her pussy up and down. Each movement rubbing my boner across her clit and getting closer to going in her pussy. Now we both were moaning a little. I was going to cum with this feeling on my dick. She seemed to know it and lifted her pussy way up and….. in went my dick in her pussy. It was so warm and slick, my dick went into shock as she squirmed my dick in deeper. We never spoke, just our breathing and moans were heard. Her hands kept squeezing my butt cheeks over and over. She let her knees out to get me in deeper.
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My sister is now rubbing her pussy and a full massage of her tits. Her eyes are glazed over picturing all this in her mind. I smiled to myself and thought…she may have an orgasm over this story, now who’s making who horny?…I could see her fingers moving under her night gown and hear the clicking of her juices. Now she was giving me a live horny show, and I was loving it. Did she not even notice my big boner that looked like a big salami in my jeans? Nope, she was in a daze and I had control now. I was mean and paused. She said: “Yes…then what???” I smiled and said: “Well….it’s kind of embarrassing. “ She said loud: “Fuck that!, go on with it Sonny!”
( I was having a very good time after her years of sexually teasing me.) I was also enjoying looking at her hot body as she was masturbating. She was built like our real mom , with nice tits and a good figure. She was now hornier that I’d ever seen her. I laid down next to her and continued.
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I don’t know what kept me from cuming in Stella right away, I think is was too intense. She pulled me deeper and deeper in her until I was touching bottom. Now she began to shake and squirm hard. We were like a smooth fucking machine We blended together as one and her legs came up and held me tight in her. She began to moan out of control right in my ear. “oh …oh…oh god….Oh god…OHhhhhh!.”
She felt me shoot my first shot in her. She made groaning noises as her face got red and she shook hard. She moaned and climaxed so beautiful in my arms, it made me shoot harder and harder in her. We locked up and trembled. My dick and balls hurt from the strain. I couldn’t get air from her holding me so tight.
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I looked right in sis’s eyes. She was also red in the face and trembling, she burst out a moan and orgasmed while staring me in the eyes. I watched her keep fingering her pussy as she had gushed a little on her night gown. I leaned on my elbow and just watched her tremble and orgasm.
I had wanked many times thinking about her and I fucking wildly. Now I got to watch her orgasm right in front of me. I reached out and rubbed her arm. She jumped and scooted close to me, still rubbing her pussy. I let my fingers tease her neck and wander close to her nice tits. I watched her slowly close her eyes. I played with her like a new toy. Slowly my hand felt her tits and big firm nipples. I slowly opened the front of her night gown. She was going for another orgasm with both of her hands working her pussy.

I said: “Stella doesn’t need you knowing about her and I…ok?….and she doesn’t need to know anything about what you and I do either…right?…so let’s just keep all this between you and I. “ She nodded her head, still playing with her pussy. I said: “She will be home anytime now, but tomorrow she’ll be at work, and you and I can…well..” I leaned down and kissed her tits gently as she moaned and shivered again….she was now gasping for breath. I had to cum right now, and quick before Stella came home. I took down my pants, finally let my boner out and began to wank right beside sis. Now she could watch me cum like I watched her orgasm. I watched her hands masturbate her pussy as I went into a fantasy about me fucking her. Her eyes were locked on my boner as I stroked it faster and faster. She began to moan and tremble waiting for me to cum. I couldn’t hold it back anymore and shot a huge stream up in the air. I moaned and my body jerked out of control. My second shot was met by her hand above

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