WARNING: This story contains sibling incest themes, bondage and some humiliation.
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I had developed a terrible obsession with my step-sister's naked body. I couldn't wait to get my hands on it.
It had been 3 years since Natalie and her mom Sarah came into our lives. As a young, perpetually horny teenage male, it had been both wonderful and torturous to suddenly have a beautiful young woman living in my home.
Natalie was 16 when our parents met, and already showing signs of the beauty she would blossom into. It wasn't hard to imagine, looking at Sarah, but Natalie's body promised to be even lusher than her mother's. They were both brunette, with long dark hair with natural, large curls. Natalie's eyes were an ocean blue, Sarah's much more blue than green. They were both possessed of hourglass figures, though Natalie's looked at though her hourglass might gain quite a bit more sand in the top half than her mother as she matured. They frequently played tennis together, and each had slim and toned bodies. Sarah was 40, and could easily pass for 10 years younger.
To intensify the situation, our parents kept making us hang out together, saying it would be good to build our bond as siblings. Right. Like that's the kind of bond I had in mind when I looked at sweet Natalie.
But....she was great company. She liked to play video games, we watched the same shows on television - and on the frequent nights when our parents were out, she always made extra food for me when she cooked her dinner. Still, she was a gorgeous girl, and I wasn't above using my proximity to her to take advantage.
Now that I was 21 and Natalie was 19, I felt more confident about really getting to KNOW her. I had developed an awful obsession with her pussy, and I wanted nothing more in the world than to give it a good licking. I knew she was still a virgin, and due to my daily shows I also knew that she kept her pussy totally shaved or waxed at all times. I appreciated that and I wanted to show her. I'm getting ahead of myself. I'll rewind, back to last year when they first moved in...
She was settled into the room next to mine, and we shared a bathroom. Which meant that I knew that there was a naked girl in there in the morning, when I heard the shower come on. A hot, naked, wet girl. After wrestling with my (small) conscience for a month or so, I set about placing hidden cameras in the bathroom one Saturday morning while the house was empty. They had been easy enough to obtain as my friend, Thomas, had been working on making small, waterproof cameras for a school project, and he had been trying to convince me to field test a few to help his research. I wasn't sure what his purposes were, and I certainly didn't reveal mine - but for what other reason does a young man need such a camera?
They were simple to operate, having the capability to be set on a timer, with motion sensors, or left to on. I did Thomas a solid for his project and set each of the three cameras to record on a different setting. Natalie usually showered at 6 am during the week, so I set the timer to to record a few minutes before 6, and to go for 30 minutes. I set all three cameras around the bathroom, hoping to get everything: undressing, showering, toweling off - EVERYTHING. I added a wifi transmitter to my room, close enough for the cameras and my laptop to work on the same unit. If everything worked as promised, the cameras would transmit / stream the footage to my computer.
Late that night, Natalie came to my room. "Ryan?," she whispered very quietly. "I'm awake," I replied, sitting up in bed where I'd been with my E-reader. "I can't sleep," she confessed. "I think I have an addiction."
"Seriously, Nat? It's like midnight." "Please? They're not even home, you know. No worries about waking them up." I was surprised that our parents still weren't back - midnight is kind of late for people their age, after all - but it wasn't unheard of. "Fine, we'll do it." She clapped her hands and cheered and danced around the room. I hurried to get the light on, hoping to watch her full tits bounce beneath her pj top. Mission accomplished, I thought, covertly looking at her nipples through the thin pink cotton. She was so naive. She walked around the house like we were all one big blood family.
I turned on the Wii console and checked to make sure the game she wanted was in, a modern take on the classic Super Mario games. We sat on my bed and started a two-person game. A few minutes in, she starting talking, like girls always do. "I wish I could be a princess," she dreamily. "It would so cool to live in a tall tower with my own fireplace and servants...."
"Yeah, and be kidnapped on a regular basis by evil men."
"Not that part of the story! This is a kids game, but I know how that would work in real life."
"You mean the politics? Ransoms? Not negotiating with terrorists?"
"No! But they would take my virginity, and-"
I dropped my controller. I didn't hear anything else she said after that for quite some time.
She didn't seem to notice, intent on the game. So many thoughts were going through my head. It hadn't even occurred to me that a girl that looked like that might be a virgin. I was even more excited now that I knew I might be the first man to see her naked once I got footage on Monday! I finally snapped back into the conversation.
"- and you know I'm not like, some zany religious freak. I just don't want to regret it. I have a lot of friends who did it way too fast, or with the wrong guy, or whatever. I'm not saying marriage. But not yet."
90 torturous minutes later, the parents were finally home and in bed, and she was finally tired. I locked the door behind her and quickly stripped off my pants, fumbling for my bedside lotion as I savagely pummeled my erection into submission.
By the time Monday afternoon came around, I was ready to come unhinged. I raced home from my part time job and climbed the stairs 3 at at time. I locked my bedroom door and quickly logged into my computer, holding my breath as the folder I'd set up loaded. Holy shit, it was all there. Three different videos, all from different angles vantage points. I had hours to myself - Natalie was sleeping over at her best friend's house, and the parents would be at work for some time yet.
I picked the timed video to start with. It was in the overhead light, and positioned looking directly down, giving a great vantage into the shower. First, she turned on the water. Once the steam started, Natalie stepped in. I felt my mouth drop open as I pumped lotion into my hand.
She looked like a goddess. Her dark hair flowed over her shoulders and down her back as she let the warm water course over her body. With her head tilted back, my view of her fantastic tits was unobscured. She leaned forward, turning up the hot water and the steam increased.
I hoped the steam wouldn't affect the camera. I hadn't thought of that issue, and this was such a perfect viewpoint! Her round ass was just visible as she grabbed the shampoo. I slowly stroked myself, enjoying this new experience. She was even better looking naked than I'd imagined. Even though the semi-see-through tops she wore around the house, I hadn't been treated to the full impact of her tits. It was so satisfying to look at her nipples, especially as she rubbed body wash across them. I watched as she carefully cleaned and shaved her pussy, removing stubble I couldn't even see on the camera. Then I was losing control of my own genitalia as I watched her thorough rinsing, shuddering slightly as the water touched an especially sensitive area. I grabbed my blue jerking towel from the desk drawer, putting it to use.
Then she stopped. Natalie stood still for a moment, as if making a decision. She checked her waterproof watch, and then moved. My mouth dropped open again as I watched her remove the hand-held shower head from the wall grip. My cock rose as I considered the possibilities - but not for long, because she suddenly lowered herself to the tub floor. Once she finished adjusting the water pressure and started to aim it between her legs, I let out the breath I hadn't known I'd been holding. I watched as her thighs struggled to remain open against the instinct of her oversensitized flesh - she obviously hadn't gotten the water pressure perfect yet. Then she did. Natalie leaned back, in the corner of the tub, her lips parted in erotic bliss. Her pretty pink nipples were erect, and as I watched, she rubbed them with one hand. After a while she seemed to grow impatient, and moved that hand between her legs. It looked like she was spreading herself open, allowing the water to hit her clitoris more directly. It was a great prototype, but the camera wasn't quite up to that kind of detail at this stage. In a few moments more, she reached a climax, biting her lip to keep her soft pants and moans from erupting. My eruption was inevitable, but I had my handy towel. She rinsed off again and was done. I kept watching until the camera shut off 3 minutes later.
I've been watching her ever since. And I've been planning. It's time.