Chapter One
I just had become 18, and my half-sister was 29, at the time of this story. I've always thought she was a good looking girl, as I grew up. She was blond, with cheeks that dimpled when she's happy, and a great body. My dick would go into a quivering mass of excitement whenever she came around, like a few months ago at a family picnic. She had on white shorts, and a short, loose blouse. Of course, she had a bra on, but you could see her nipples tenting her bra at times.
I watched as my brother-in-law pushed her high on the swing. Sis was working her beautiful legs up and down, keeping the swing in momentum. As she went down, her blouse would blow up to her bra, showing all her bare stomach. My dick was hard as it could be, and I had to go to the park bathroom to jerk off, so that it won't be a noticeable bulge while we ate.
There was another time Sis came by the house to pick up some material, but our mother hasn't got back from the store yet. She had a short skirt, and a low cut blouse on. Her cleavage was really showing, and I was trying my best to see if she had a bra on. We made small talk as she fixed herself a glass of tea and dropped the spoon. Sis bent down, and her skirt revealed a bare bottom. My penis became rock hard as she stood back up with the spoon. She sat down, and noticed that I was staring hard at her skirt.
Realizing what had happened, Sis smiled. "Oops, gave you an eyeful, didn't I?"
I reddened, and didn't say anything. Sis uncrossed her legs and held them apart. I could see her fleshly pussy lips, as my dick was making a noticeable lump against my pants, and I tried to push it back down. She winked at me as our mother came home.
The next week Sis came back to deliver a wrap that she had made from the material. I was in my room reading. Sis had excused herself to go to the bathroom, then stepped into my room and rumpled me on my head. I saw her bare legs going into her tight jean shorts, and some skin above her shorts, then her shirt.
My eyes went up to her titties. Sis was showing cleavage again, and there were two nipple points just covered by the shirt. My dick was trying vainly to stand up inside my jeans. She reached down and ran her fingers lightly along the length of my dick. Sis smiled and kissed me tenderly on my forehead and backed out of my room.
A while later, after my dick had settled down, I went to the kitchen for a snack. Sis was talking with our mother. She asked me after I got my snack, "How would you like to go home with me for a few days?"
"I sure would." I said, as Mom smiled at us.
We went to my room to pack. My sister sat on the bed and told me I didn't need to pack much, just my swim shorts and another pair of shorts and a T-shirt. I looked at her nipples as I dug my shoes out from under the bed, and she pressed up her titties with both hands, making her nipples stick out more. My dick was trying to pop out of my pants.
We left in her convertible, and soon stopped at Dairy Queen for ice cream. When we got back in the car, Sis unsnapped the top of her shorts as she sat down, and I dripped some ice cream on my shirt as I got in. Sis told me to pull it off. As we went down the highway, she worked her shorts open a little more, and I could see her blond pubic hair. She reached over and rubbed my thigh, then began to fumble with my zipper. I pulled it down, and she eased her fingers inside and gently stroked my dick.
It was getting dark when we stopped at a convenience store to get gas. We went in and I went to the restroom while she paid for the gas, and then followed me into the bathroom. I was peeing when Sis walked in. She pulled her shorts down, and I saw that she didn't have any panties on. She had trimmed pubic hair, and a nicely rounded butt, as she sat on the toilet next to the urinal.
I started to pull my pants back up. "Wait," Sis said. "Pull your under shorts off."
I stripped and she pulled me onto her lap. My naked bottom was on her bare legs, and my dick was so stiff I didn't know what to do with it. Sis began to massage my dick, and it felt so good, leaving tingly feelings all over my body. She finished her tinkling, and told me to put my pants back on as she wiped herself.
When we went back out, the female cashier was getting a bottle of cleaning fluid out of the closet and her eyes became big. I also noticed her nipples becoming erect in her shirt. My sister had her hand on my butt as we went out the door and got into the car. Sis unfastened her shorts again as she sat down, and told me to pull my pants off as we pulled out onto the highway.
It felt good to be riding in a car naked for the first time in my life, as Sis caressed my dick. She told me of the times when she rode with her husband in his truck as he made deliveries that she would ride hours in the nude as he drove.
We arrived at her home in the wee hours of the morning, and I reluctantly pulled my pants back on, and followed Sis into the house. She went on to her bedroom while I deposited my bag by the sofa, unsure what to do. She came back with an armful of sheets and pillows. "Come on, pull your pants off." she said. Sis pulled out the sofa bed as I pulled my pants down.
"There," she said, "All ready for us."
I laid down and watched her pull her shirt off. My dick was turning blue from the excitement, hard as it could get and still trying to swell more. A drop of clear fluid had formed and quickly oozed down the head of my dick. Sis's titties were jiggling as she worked her shorts down. She had rather small, but fully pointed nipples.