Pamela, Billy's kid sister was about to turn eighteen and already she was the biggest tease in the world, to make matters worst she had chosen Billy to be the subject of her torturous teasing. Pam was a beautiful girl with the body of a men's magazine model and the face of a Greek goddess, she knew it and she used her looks to get anything she desired from whom ever she chose; it was Billy's turn as she had decided that she wanted him to be her first. Pam had always had a crush on her brother and as long as she could remember she had dreamt of him making love to her and taking her maidenhood.
Billy was not a bad looking boy but he was extremely shy to it came to women, he had only gone out in two dates and nothing really came out of any of them. To make matters worst both girls had made fun of him at school and everybody thought he was a dork; having Pam as a sister didn't help him at all, she had a very outgoing personality and everybody liked her, dating was no problem to her and she had dates almost every weekend. But Pam's mind was set on having herself to her brother and she never let anyone into her pants, no matter how hot she was or how much she wanted to feel what making love felt like; she was saving herself for Billy.
As her eighteen birthday got closer she began to conceive a plan on how to get her brother in bed; Pam realized that the only way to go about it was to get him as horny as she could until he couldn't take it anymore so he would comply to her wishes, and the only way to achieve it was to tease him as much as she could until he gave in. With her plan all set she waited patiently for her birthday to arrive, in the mean time she prepared herself to be as sexy and attractive as she could be for her brother. Pam went to a beauty parlor to get her legs waxed along with a trimming job on her pussy; she wanted it to look as inviting as possible, she wanted to have her pussy bare except for a small heart shaped patch on the top.
The woman at the parlor did such an excellent job that when Pam saw her shaven pussy, she got so aroused that she could actually see her cunt lips swell and she felt the moistness in her pussy. If she had been home she would have fingered herself for sure, but she bit the bullet and waited for her brother to the honors. After that she went to buy some lingerie for the occasion; a black lace with embroidery in the front thong and a matching bra which made her breasts seem bigger, a black garter belt and black stockings; she looked incredible in her new attire as her ivory skin contrasted with her black outfit. Then she bought a black cocktail dress with enough cleavage to make any man turn his head; a pair of high heels completed her outfit.
From the day of her birthday party Pam started teasing her brother; she would leave her bedroom door open when she changed clothes knowing Billy could see her from across the hall, she wore only a short t-shirt and the most revealing panties she had when they were alone in the house, bending over pretending to pick up something every time she saw Billy was behind her, giving him a great view of her butt. When they were in the kitchen Pam would rub her tits on Billy's back as she passed behind him; she even asked him compromising questions about her body, if he thought her tits where to small or her butt to wide while she lifted the t-shirt exposing to Billy either her naked breasts or her thong clad butt. With her plan starting to develop she just had to wait for the perfect timing and it came when their parents announced that there was a family emergency and that they had to leave in two days to go visit their sick relative; it couldn't have been more perfect, now it was time to work harder on Billy.
Billy was falling into Pam's game as she made him hornier every day; it was hard for him to conceal his erect dick from Pam every time she teased him, he even had to ran to his room a few times to jerk off because she got him so hot that he couldn't take it anymore. Of course Billy wondered what was going on with Pam, was she doing it on purpose or had she just simply lost her mind; it didn't matter, he got to watch her sister's naked body all the time and he loved it; it was a once in a lifetime experience for him, the closer he had ever been to a naked woman was his nudie magazines and the internet.
The day before their parents left, Billy overheard a conversation between Pam and one of her girlfriends while they were at her room. He listened closely as Pam told Carrie about her plan and what she had been doing to him; at first he was stunned by the fact that his sister wanted to sleep with him, but then his shock turned into lust as he remembered how many times he had stroked his dick thinking of her and wishing that someday he could screw her, so he decided to go along with Pam's plan and then he was going to try to get Carrie involved. He had always liked her and she was also a very attractive girl; she had been in the cheerleading squad since junior high and she had a magnificent body. As he pictured both of them naked with him on a bed he felt his dick growing to its fullest, that was all he needed to make him grab a bottle of baby oil and go jerk off picturing his sister and Carrie banging him.