Tim is your typical 18 year old high school boy. He plays football, basketball, and runs track. He stands 6'1" with dark brown hair and hazel eyes, weighing about 180 lbs.
He lives with his dad as well as his stepmom and stepsister. His dad had married his stepmom, Kelly, about 6 years ago, after Tim's mom had left them when Tim was 7. He gets along with them alright, fighting with his stepsister, Jenna, every once in a while, like any normal siblings.
Jenna is also 18, standing about 5'4", with long red hair and blue eyes, weighing almost 105 lbs., with a nice 32C chest. She isn't her mom's biological daughter though. Kelly and her ex husband adopted Jenna as an infant.
Kelly is 42, standing 5'7" with strawberry blond hair and blue eyes. She weighs around 130 lbs., with big 40D tits.
Many times the two kids were left home alone, with Tim in charge, while their parents were at work. It was summer break from school, so Tim and Jenna didn't have much going on.
Jenna has always had all kinds of guys chasing after her at school, wanting to date her, but she seemed to be stuck up and never gave the guys the light of day. They would always ask Tim what was up with her, but he didn't know either.
The reason is that Jenna secretly has a crush on Tim. She knew it is wrong in a way, because he is her stepbrother, but they aren't blood related, so she didn't think it was that bad. She was a virgin and wanted Tim to be her first. She had however, already broke her hymen while doing gymnastics in school.
Today was like any other day, their parents were gone to work, and they were lounging around the house. Tim was in his room, laying in bed, and watching TV.
Jenna was in her room, getting ready to go out back to sunbathe. She put on a hot pink, string bikini, that hugged her supple tits tightly, and hugged her firm ass tight. She wanted to see if she could get a reaction out of Tim, and see if she could possibly seduce him.
Tim's bedroom door was ajar, as he laid in his bed, wearing boxers and a t-shirt. He heard Jenna's door slam shut, and her flip flops slapping her feet as she walked down the hallway. He watched the hallway as she got closer to his room. Jenna stopped in front of his door and lightly knocked.
"What do you want?" Tim almost yelled, hoping she would've just walked past his room.
Jenna pushed the door open and peered in, "hey Tim, I'm going down to sunbathe, could you come down and rub some lotion on my back?"
Tim looked at her sternly, a little agitated at her request, he did not want to get out of bed yet. "Can't you do it yourself?" He asked, a hint of anger in his voice.
Jenna looked at him sincerely, as she opened the door further, giving him a full frontal view of her. She hoped this would work, and get what she wanted.
Tim felt a lump form in his throat as he looked at her. Her red hair was tied in pigtails, her tiny nipples were poking at her bikini top, her firm stomach glistened lightly with lotion she had already put on, and her bikini bottoms hugging her crotch tightly, showing a slight hint of her womanhood. He had seen her dressed like this before, but her tits had really filled out since the last time.
Tim cleared his throat nervously, "you can't do it yourself? I don't wanna get out of bed yet," he said softer.
Jenna giggled, shaking her head, "come on you lazy bum, I won't bite you. All you gotta do is make sure my back gets covered."
Tim snickered, contemplating her request. She did have a point, all he was going to do was rub lotion onto her back. As Tim laid there looking at her, his dick began to grow in his boxers, forming a bulge against them.
Jenna looked at him, hoping her plan would work, looking down his body and noticing the bulge growing. She blushed, innocently swaying her body, wondering how big he was.
Tim scoffed finally, "ok I'll help you out, let me get dressed."
Jenna's face lit up with excitement, "yay, thank you Tim, but why get dressed?" She asked, her mind racing now with ideas.
Tim looked at her and laughed, "umm because I'm going outside, I don't think the neighbors wanna see me in my boxers."
Jenna twirled one of her pigtails innocently as she smiled seductively, "you can just do it up here, I can just lay on the floor or on your bed."
Tim looked at her seriously, "ok that works for me, I guess you can lay on my bed. Do you have a towel to put down?"
Jenna nodded excitedly. She stepped back and ran to the closest in the hallway, retrieving a towel. She came skipping back into the room, towel in hand, her pigtails swinging and her tits jiggling, a wide smile on her face.
Tim tried to position his dick, trying to hide his erection. Tim pulled his shirt over the head of his dick that was poking out of the waistline of his boxers, hoping she didn't notice.
Jenna's eyes went straight to his crotch as she strolled up next to Tim's bed, noticing his thick dick. She had never seen Tim's dick, nor any guys, except for when she had accidentally seen her step-dad's, when she had walked in on him changing. She didn't know what to expect, but she wanted to find out. She giggled as she looked back up at him, throwing the towel on his bed.
Tim looked at her, a little uneasy now, his dick refusing to calm down. She handed him the lotion, and he watched her climb onto his bed, as he stood next to it, watching her crawl on all fours, swaying her firm ass in front of him.
Jenna looked over her shoulder at him, smiling slyly. She hoped he liked what he saw, and that he wouldn't change his mind. She moved herself around, so she was facing towards the headboard. She lowered her chest onto the towel, leaving her ass high in the air, smiling at Tim.
Tim looked at her awkwardly, wondering what she was doing, "what the hell are you doing Jenna?"
Jenna was taken aback by his question, thinking he would enjoy the show. Her look changed to disappointment as she let her hips flop on the bed, laying flat on the bed.
