My name is Will and I'm nineteen years old living at home with my parents and younger sister, Brooke who is eighteen. My older brother Kyle is going to college out of town and isn't coming home. He is living off-campus and has a job and a girlfriend. Meanwhile, I'm stuck at home while going to our local community college because I was stubborn and would rather have partied in high school than focus on my grades and I'm now paying the price.
Growing up, Kyle seemed to be the favorite because he was good-looking, smart, and athletic. He got a full scholarship to a university out of state and my parents weren't shy about showing how proud they were of him. I was an average student at best, only played junior varsity sports, and could never live up to the standards that Kyle set. I always wanted to be like him but it just wasn't meant to be. My sister Brooke was the youngest and only girl who got a lot of attention from our parents. They babied her and she knew how to work her status to her benefit.
It seemed like Brooke was always trying to get me in trouble, maybe because I was an easy target. She squealed on me whenever I was trying to hide things I'd done from my parents and if we got into an argument, all she had to do was start her fake crying and I'd get yelled at. Things got worse as we became teens. We were both going through hormonal changes and I got into a lot of trouble even without Brooke snitching on me.
She is a September baby, so she spent most of her senior year of high school as an eighteen-year-old. Brooke was a late bloomer and her body seemed to suddenly change once she turned legal age. Maybe the changes happened slowly but one day when she was wearing a tight t-shirt, it seemed like her boobs got bigger. Her butt looked like it was more shapely and filled out her shorts. Brooke was still a bitch to me so some things didn't change.
Brooke was always sensitive about her body, which I imagine most girls are, so I would always try to tease her. Looking back, I probably should have been more aware of a teenage girl's body image issues, but I was a teenager myself in a bitter sibling rivalry. I would ask her if she was stuffing her bra and tell her that her ass looked big. In reality, she was a pretty girl with light brown hair and eyes and a little taller than an average girl her age.
I knew I got under my sister's skin when she would yell at me, "Fuck off, Will. Kiss my ass."
I'd respond by telling her to, "Whip it out," or if I was really mad, I'd tell her to, "Suck my dick."
Sometimes she would yell out, "Mom, Will told me to suck his dick again."
It didn't matter that she told me to kiss her ass or to fuck off, I'd still be the one to get yelled at.
"That's disgusting, Will. Stop picking on your little sister," was a phrase I was very familiar with hearing.
Brooke would give me one of her fucking grins that told me, "Ha, ha, I got you in trouble."
It was even worse if she got the fake tears rolling down her cheek. I don't know how she taught herself to do that but it worked and she wasn't afraid to play that card just to get me in trouble.
In between our fights, I was noticing the change in Brooke's body. She seemed to be proud of her new womanly figure and wasn't shy about dressing in tight tops, short skirts, and body-hugging shorts. My father wasn't happy about the way she dressed but our mom kept telling him that's how girls dress nowadays so he stopped protesting. He'd make a random comment or two if she was going out but he knew he wasn't going to win that fight.
Even though Brooke and I didn't get along, it didn't stop me from sneaking peeks at her tits or ass. When she was around the house late at night or early in the morning, she wouldn't wear a bra so I'd get to check out those beauties, especially if her brown areola and nipples were visible underneath her top. Sometimes she would wear a long t-shirt that barely came below her butt so I got plenty of looks at her panty-covered ass. On rare occasions, Brooke would be sitting on the sofa late at night with her legs curled up but I could see up her nightshirt and see her dark bush through her panties. I knew it was wrong to be looking at my sister like that but I was also a horny, curious teenager myself.
Horny teen boys have no control over their hard-ons. Sometimes it just happens for no reason.
There were times when I would have to hide my hardon with a throw pillow from the sofa when Brooke was wearing something, particularly revealing. I'd chastise myself but I couldn't help it. In the mornings when we were getting ready for school, Brooke wasn't shy about going to the bathroom and back to her room wearing only her bra and panties. She must have known I was looking at her but she never said anything so I kept looking. If Brooke was wearing a lace bra, I'd be able to see through the sheer material to view her nipples. I always got a great view of her ass, especially if she was wearing a thong. As much as I'd admonish myself for checking out my sister, I couldn't help it. On more than one occasion, I'd rub one out after seeing my sister half-naked.
My sister's breasts had grown to be round and full, her legs long and lean and her ass had such a nice little wiggle to it. It was hypnotizing how her glutes would alternately tighten and loosen as she walked. Her waist had that nice hourglass figure. Brooke was decent looking too with her brown hair and eyes.
Even my friends began to notice my sister's changing figure and they would tell me how hot she was looking. She seemed to notice them checking her out and always made sure to come into the room where my friends and I were hanging out. My friends would stop talking and watch Brooke until I told her to leave.
She began to date more, even going out with some college guys, so I figured she was sexually active too. There were times when Brooke would come home late at night with her clothes disheveled and her hair mussed so I figured she probably just fucked her date in a backseat.
Our parents decided to take a cruise with their friends in the spring and they'd be gone for more than a week, which meant Brooke and I would be alone in the house. They thought about bringing in our aunt to stay with us but for once, Brooke and I were united in our protests but only after promising that we wouldn't fight while they were gone. They were looking at me when they said we could only have one friend over at a time and sternly warned us against having any parties. That first night, a Saturday, Brooke brought a male friend over and spent a considerable amount of time in her bedroom. I was lucky enough to get a girl I knew at college to come over and I got laid too. It was a great way to start our vacation from our parents. What made it even better was the fact that we both had dirt on each other so we couldn't snitch.
Sunday was pretty quiet as both of us spent time during the day with friends then ordered a pizza and washed it down with some of our father's beers. Later that evening we decided to have a couple more beers and watch a movie together. I told Brooke she could pick the movie because I wanted the big screen TV for the championship NCAA basketball game Monday night. Surprisingly, she didn't give me a hard time. Maybe we would get along better if we weren't competing for our parent's attention.
Halfway through the movie, Brooke put it on pause so she could change and go to the bathroom. I took the opportunity to change into a pair of sweatpants and a t-shirt. When Brooke came back she was wearing a short red satin chemise that barely covered her ass. Although it wasn't see-through, her hard nipples were poking through the top. Her breasts had a noticeable jiggle when she walked. My uncontrollable dick started to get hard as I sat next to her with her bare legs and feet only inches away from me. I could see the outline of her breasts from the side and saw plenty of cleavages when she leaned over.
I tried not to stare and got nervous when Brooke asked, "What's wrong?"
"Nothing. Why'd you ask?"
"You keep staring at me."
"No, I'm not."
I chastised myself, reminding the horny devil inside of me to be more discreet but I couldn't help myself. When Brooke went into the kitchen to get us a couple of beers, I took the opportunity to put a throw pillow over my lap to hide my erection. When she came back, she leaned over to put my beer on the coffee table, giving me a nice look down her chemise at her tantalizing tits. Brooke walked around the table and suddenly tried pulling the pillow away from my lap. We got into a playful tug of war over the pillow. I could see Brooke's tits bouncing around under her lingerie, almost popping out. The bottom raised, revealing her thong underneath as we wrestled for the pillow, her bare legs moving and kicking around.
