This story is purely fictional and just my imagination run wild.
I was groaning very loud as my hips were driving my cock back and forth in my sister's pussy. She was frantically pushing up meet my every thrust. I yelled as my sperm began shooting into her hot and vibrant pussy. Her vocalizing was the usual loud, sometimes shrill yelling that was familiar to me. I knew she was enjoying a very satisfying orgasm while my cock was jerking and spewing.. It had been a week since we had met at this motel and we both were throughly enjoying our time together.
I kept my cock in her until it became very small and felt as if it was about to fall out. Our heavy breathing had subsided and I decided to roll off and lie by her side. We relaxed with our own private thoughts.
I finally spoke, "Sis, this afternoon has been wonderful as usual. I look forward to our time together like this. When was the last time you had sex with Phil?"
"That husband of mine rarely wants sex anymore. I think it's been about three weeks since he made love to me. When we were married ten years ago, he wanted lots of sex. He gradually lost interest even though I try to make it sexy for him."
I could only respond, "Too bad. I know you like sex and I really like being with you, too."
"Yes, I look forward to our meeting. I would be very disappointed with life if I didn't meet you like this," she rather sadly said.
I asked, "What do you do to make it sexy to get his interest?"
"Occasionally I get in the shower with him and wash his cock and balls."
"Doesn't that get him excited?" I exclaimed.
"A little bit, but by the time we get dried off and in bed, he has lost interest. About the only time I really get his interest is when I take his cock in my mouth."
I could only add, "When you go down on me, it really gets me excited and I can fill your mouth rather easily. What about him?"
"The other night I did that to him and his cock didn't even get hard. He told me to wait until some other time."
"Sis, all this talking about blow jobs is giving me a hard on again."
"Brother dear, I'm in no hurry to leave, so let's do a six nine. First, I'm going to the bathroom to clean up a little. I'll be right back."
I watched as her shapely body walked to the bathroom. It's hard to believe her husband doesn't want sex very often with her. Ever since my divorce, she has been a life saver for me and my sex life. I remember the time back in our senior high school days when we first started having sex. If you will be patient with me, I'll give you the background of our life and first time we had sex.
My sister, Betty, and I are twins. We often fought each other while growing up, but we finally became good friends and shared many of our secrets during our last year of High School We had our eighteenth birthday and were about to graduate.
Mom and Dad were gone over the weekend leaving Betty and me alone. We were warned not to have any big parties. Saturday afternoon I had been out with some of my friends and decided to come home by six o'clock to get something to eat.
When my best buddy dropped me off at my house, I noticed a car in the driveway. I didn't recognize it and assumed someone was visiting my sister. I quietly entered the front door and could hear soft music probably coming from one of the bedrooms. I felt sure whoever was in the house did not hear me come in because of the music.
I walked down the hall to hear the noise coming from sister's bedroom and the door was slightly cracked open. Evidently she had soft music playing on her CD player. I glanced through the crack but could not see her although I didn't have a complete view of the room. Then I glanced in the large vanity mirror and saw the reflection of my sister near the bed with a man. I then noticed they were undressing and nearly naked
I thought I recognized the man. He had graduated three years earlier and I wondered how he met my sister. I then remembered his name was John.
I saw him tug at my sister's panties encouraging her to pull them down. I then saw her furry bush which I had never seen before, at least not this clear. John quickly moved his hand down to her crotch and it looked as if he was getting a finger in her pussy. She pulled away from him to say, "Get undressed and let's get in bed."
By now my cock was trying to burst out of my jeans. I knew I had to go to my room to masturbate, but I could do that later. I wanted to watch right now.
I had seen her breasts on rare occasions and now I admired the size and shape of her perky nipples. John was naked with a large erection as he jumped in bed. I watched as he kissed her once while his hand was rubbing between her crotch. With very little foreplay, he rolled up on top of her and aimed his erection. I was beginning to think he was taking her like a cave man and wondered if she was wet enough for him to slide in. From my viewpoint, I was looking at the foot of the bed with their feet closest to me. Her feet were small, soft and dainty looking compared to his large rough looking feet, but I guess that is the difference between male and female. I saw his large cock probing at her hole, but wasn't having much luck getting it started until sister moved a hand down between them to spread herself. He kept pushing and straining to get it in. I heard sister groan with pain and loudly say, "Take it easy, I'm dry."
Then I watched him back off, take his hand to move the head of his cock up and down her slit. His precum soon allowed the head to enter. I watched as he pulled back some and rammed in some more. I often heard her groan as if she was in pain. I felt the urge to barge in the bedroom to tell the guy to get the hell out of our house. I didn't know what to do, but about that time I could see he was fully buried in her.
He soon started fucking her rather fast, giving her several long thrusts, then he quickly started yelling and groaning as he flooded her pussy with cum. I knew he didn't give her time to have an orgasm. He was just using her.
He laid on top of her until she growled , "You're too heavy, get off."
He pulled out as I watched cum gush out of her pussy. He got up to dress. I decided since they had never noticed me looking in the vanity mirror, I had better hide out. I went in the kitchen and hid around the corner until I heard the front door shut. Good riddance I thought. I wondered why my sister let this guy fuck her.
I went back down the hall to my sister's bedroom to see the door fully open. My sister was lying on her back with her legs spread just in the same position when John was on top of her. I think she had her eyes closed, so I quietly walked to the foot of her bed. I could see her pussy lips gapping open with John's cum still oozing out. She looked well used, but rather sexy in a crude way.
I didn't want to startle her, so I walked out of the bedroom and partly shut the door. I then lightly knocked on the door and walked in.
She looked frightened and grabbed the sheet to cover herself up. However, she knew I had seen her fully naked with her legs spread and her pussy gapping.
She loudly exclaimed, "What are you doing here?"
I didn't answer her directly but said, "John's been here and I know what you have been doing."
"How long have you been here and did John see you?"
"Sis, I'll be honest with you. I was in the house while he was fucking you. He was just using you and when he got his rocks off, he dressed and left. Why did you bring that guy here and let him get in your bed?"