Travis sat at his desk, diligently working on his summer reading assignment. He was excited to be starting his senior year and the promise of college beyond. His family was leaving on a four day vacation before the start of the school year and he wanted to have his assignment out of the way so he could enjoy the trip. He was peeved that his twin sister, Liz, had gotten a different English teacher and had no assignments at all! She had spent hours out at the pool while he was stuck inside writing book reports. "It isn't fair," he thought, "how can we be nearly identical yet she has so much better luck?" Frustrated, Travis decided to put his book down and go for a swim.
Right as Travis was headed outside to the pool, Liz came home from work. "Are you headed out to swim?" she asked. He replied, "Yep. Why don't you put on a suit and we can set up the water volleyball net."
"Sure thing," Liz replied, "I'll be out in a few minutes."
As she walked upstairs, Travis couldn't help but notice how her butt cheeks bounced just a little with each step. Travis had always gotten along with his sister, but they had largely lived separate lives with different sets of friends and activities. Summer was one of the rare periods that they spent much time with each other. Travis set up the volleyball net in the pool just as Liz walked outside. She pulled her cover-up over her head and Travis noted to himself how great she looked this summer. Within the last year she had lost a few pounds and had a firm body and, he guessed, C-cup breasts that complemented her figure. "I suppose a hot sister isn't the worst thing in the world," he thought to himself.
Liz had always found ways to have fun in life. One summer she worked as a camp counselor, another she took a trip to the rainforest with a wildlife preservation group. The summer before her senior year she decided to work at a local restaurant serving breakfast to the tourists in the city. She enjoyed the hours as she was off by lunchtime and could have fun in the afternoon and at night.
After her sophomore year in high school, Liz had become more aware of her figure and sexuality. She had been chubby but decided during her junior year to exercise more and improve her image. She was able to wear tighter clothes and enjoyed her new look. Although she would never tell her brother, she knew he masturbated at least a few times a week and started a similar habit of her own. Although she had dated several of her classmates, she was not serious about any of them. Just before summer, Liz had called it off with her boyfriend who was going to college and did not want a long distance relationship. It had been several months since she had last had sex and Liz was starting to get the itch.