My sister and I have been lovers for almost fifteen years now. We are the parents to seven children. We currently have four girls and three boys. We are expecting numbers eight and nine in about two months. The doctor has said that the two Danielle is now carrying are also girls. Danielle is a tall willowy blonde who even at thirty-six years old, still looks awesome and could easily pass for someone ten years younger, despite having borne seven babies.
It all started when she and I were both home from college for the summer. She was twenty-one at the time and I was nineteen. We had always been close but nothing had ever happened between us, until that Monday in the middle of June, even though I had often fantasized about it.
It was over 100 degrees outside and Danielle walked by my room in a white string bikini. She paused by my door and looked inside. I was lounging on my bed in just a pair of boxer shorts.
"Hey, bro. I'm going for a swim, care to join me?"
"Sure, Danielle. I'll see you out there."
She turned and walked out the back sliding door to our in ground pool. I quickly stripped of my boxers and grabbed my swim trunks from the drawer and slipped them on my body. I had a little bit of a hard on from seeing Danielle walk by in her bikini that left almost nothing to the imagination. I grabbed a towel from the linen closet and headed outside to join my sister. She was already in the water when I came outside. So I tossed my towel on the lounge chair next to hers and dove in the pool. I glided up to her and then dove under her and swam between her legs. Her pussy mound was clearly visible through the white fabric.
As I surfaced she turned around to face me and asked, "Like the view?"
"Of course, I always enjoy looking at beautiful women."
"Thanks," she said.
Both of us went down to the shallow end of the pool and stayed there for the next twenty minutes. She then got what looked like a wicked gleam in her eyes.
"Hey, Chris. Take a look at these."
With that she lifted up the top of her bikini and flashed me her tits. She kept the top up for only a few seconds but I still got a nice look.
"Danielle," I said, pretending to be shocked, "I'm your brother, you shouldn't be showing me your boobs."
"I know but you got a good look at my pussy earlier so I figured that you wouldn't mind seeing my breasts either."
"You're right I don't mind."
We continued to swim and splash each other for another ten minutes. Then Danielle got out of the pool and lay down on one of the lounge chairs. I joined her about a minute later. We both lay in the sun for about thirty minutes and then Danielle said, "I need to cool off again."
"I'll join you," I replied.
I had noticed that her bikini was held on by only a few knots. So I waited until she was in the deep end of the pool before I struck. I swam by her underwater and grabbed the knot that held on the bottoms with one hand and the knot that held on the bra with the other. I quickly pulled both strings and both pieces came off her body and into my hands. I quickly dashed into the shallow end of the pool and jumped out grabbing both of our towels. I noticed Danielle still trying to tread water in the deep end while covering her tits with the other hand.
"Chris, give me back my bikini,"
"Come and get it," I said with a smirk and went inside.
I went into my bedroom and removed my trunks. I lay down on my bed and draped both pieces of Danielle's bikini around my semi-hard dick. It was only a minute later when Danielle appeared at my door fully naked and saw where her bikini was.
"Oh, my god, Chris."
I looked over at her naked body and that finished the job my cock grew to its' full length of eight inches.
"Chris, you have a huge dick," said Danielle as she entered my room.
"That's what my girlfriend at college said."
"I never had one as large as yours inside of me," she said as she sat down on the edge of my bed.
She grabbed the pieces of her bikini and tossed them on the floor.
"Chris, I have to fuck you."
"Danielle we can't fuck. We're brother and sister. It's incest."
"I know that it is incest. But I'm very horny and have to feel what it is like to have your huge dick in my pussy."
Before I could do anything she had grabbed my dick with one hand and swung her leg over my waist. She was now straddling my dick. It was right at the opening of her vagina. She slowly lowered herself. Her pussy lips began to expand as they spread around my dick. Inch by inch she lowered herself until she had taken the whole length of my dick into her. She came back up about an inch and then lowered herself again. Her full bush rubbed against the base of my stomach.
"Danielle, you're fucking me."
"I know your dick feels so wonderful inside of me, I can't help it."
I reached up and grabbed her tits and began to fondle them.
"I see you're enjoying it also."
As much as I didn't want to admit it, I had to.
"Yes, sis. I'm enjoying fucking you as well."
I grabbed my sister around the waist and flipped her over so that she was on her back and I was on top of her. I began to fuck her faster.
"Oh, yeah Chris, fuck me hard."
My balls slapped against her on each stroke into her. Then her pussy clenched around my dick and I lost it. I began to fire stream after stream of sperm into her.
"Are you cumming in me Chris?"
"Yeah, Danielle, I am."
"Why?"
"Your orgasm triggered my own and it was too late to pull out of you by the time I realized that I was cumming."
"Well we may have a problem."
"What kind of problem Danielle?"
"I'm not on the pill."
"What do you mean?"
"I could get pregnant."
"What are we going to do?"
"We could fuck some more."
"What?" I asked.
"I want to find a sex partner for the rest of the summer. I know that I liked having you fuck me. You said that liked fucking me, right?"
"Yes," I admitted.
"You also want to have a sex partner for the summer don't you?"
"Yes."
"Well I know it's wrong for me to feel this way but I also liked you cumming inside of me. You're the only guy who has ever shot his sperm in me without having to wear a condom."
"What are you saying, Danielle?"
"Why don't we just partner up with each other?"
"Sounds good to me. But shouldn't we get some condoms?"
"NO!"
"Why?"
"Do I have to spell it out? You could try to get me pregnant."
"Are you sure?"
"Yes, Chris. I want you to get me pregnant."
"Okay, sis."
My dick was still inside Danielle's pussy but incredibly it was still mostly hard. I began to fuck her again. We both lasted a lot longer this time before I filled her pussy with a second load of sperm. After we had come down from our orgasms Danielle rolled off of me and headed into the shower. I waited until she was out and then went in and took one of my own.
When I was done, I dressed myself in a t-shirt and shorts and headed out to the living room. Danielle was in there in a short skirt and blouse. I could see her bra through the blouse. She smiled and me and flipped up her skirt, showing me her thong.
I reached for her but she said, "No, mom and dad will be home too soon. Come to my room tonight about 11:00."
Both my sister and my rooms were on the opposite side of the house from our parents room, so there would be almost no danger of them hearing us. Especially as they were both heavy sleepers.
After dinner the four of us settled down to watch some TV. Our parents headed off to bed around 10:30, Danielle excused herself fifteen minutes later. I stayed for about another ten minutes and then headed to my room. I quickly changed into just a pair of sweatpants. I went down the hall to my sister's room, and nudged the door open. She was laying on her bed in a sheer nightgown. She smiled at me, and beckoned me over to her. I smiled back and as I entered the room I closed and locked the door behind me. I tossed her bikini to her.
"Here you left this in my room this afternoon."
"Come over here stud."
When I reached the side of her bed Danielle reached out and took a hold of my dick through my sweats.
"So, Chris are you ready to give me some more of your sperm in my pussy?"
"Of course, Danielle."
I stripped off my sweats and exposed my already hard cock to her. She bent her head down to it and kissed it.
"Well get up here on the bed and fuck me."
"Yes, sis."
I climbed on the bed next to her and kissed her on the lips. I then lifted the hem of Danielle's nightgown and pulled it over her head exposing her naked body to me again. My sister saw that my cock was fully erect. She pointed at it and then at her pussy and said, "That goes in here."
I put the head of my cock at the lips of her pussy and gently pushed. Danielle gasped as I sank into her.