*All characters are over the age of eighteen*
*****
I watched her tight teenage ass sway back and forth as she walked through the hall in front of me. Her black yoga pants hugging her long legs and ass perfectly. We made our way out to the parking lot and toward her truck. I knew that she was up to something but I hadn't yet figured out what it was. As we got close I ducked behind a car three or four spaces over, careful not to be seen. And then I waited.
It was the third time that week that I had followed Kara out to the parking lot like this. If she had known I was there she would probably have freaked out, but I had to figure out what she was up to.
Isn't that what brothers do?
Now, it was no secret that my eighteen year old sister was a slut. She was hooking up with new guys all the time. I knew of quite a few guys at our high school that she had been with. She had even been going out with guys from the local college. Not that it really mattered to me, wasn't my problem.
A couple weeks before, I had walked out to my car at lunch to get something. I was parked only a few spaces away from her black Tahoe SUV and saw her climbing out of the back seat, followed by one of her guy friends. I wasn't one hundred percent sure but I could have sworn that he tucked a small fold of cash into her waistband as she finished buttoning up her blouse.
They had obviously just finished messing around but seriously? Had he paid her?
I needed to know for sure. It wasn't that I was protective of her or anything. She had made it perfectly clear that she would do whatever she wanted. It was more to satisfy my curiosity and maybe something to have for leverage in the future. She certainly had held things over my head in the past as blackmail so it would be nice to be able to get her back.
Thats when I began following her out to her truck during our lunch break. She didn't come out to the lot everyday, but it was pretty regular. So far I had seen her sneak into her truck with three different guys. Two of them were from her group of friends and the other was some football player. But I hadn't seen any type of "money exchange" like I thought I had seen before. I was beginning to think that she had simply found a new place to hookup.
A few minutes after arriving at her truck I saw one of the same guy friends as before show up and climb into the back seat with her. Twenty minutes later he climbed out and left, followed by her a couple minutes after. 'Hmmmm...' I thought to myself. 'I need a new plan.'
For the next couple days I racked my brain with a plan to see inside her truck. I needed to see and hear inside there if I was going to find out what was going on. Then it hit me. I had bought a wireless webcam months ago for a science project. I'd needed to be able to see inside a container and observe my test subject, which was just a small plant, without opening it and exposing it to any type of light. The project had earned me a C- but the camera had worked great.
That weekend I woke up early and snuck out to Kara's truck. The camera was small and slim so I was able to hide it in the pocket behind the passenger seat. I hid it in between a scrunchy and notebook that were already in there. Unless she pulled the items out, there was no way she would see it. Now I would just have to wait until another one of her hookups to see what that little tramp was up to.
It wasn't until Thursday that I saw her head out towards her truck during lunch again. I had tested the camera on Monday. As long as I was within a few parking spaces then I would be able to pickup the cameras signal on my tablet. I had parked close to her truck all week waiting for an opportunity.
Kara walked across the lot to her Tahoe. She had started parking further back in the lot, probably for more privacy. At one point I thought I was busted when she turned and looked right in my direction. Her sunny blonde hair was tied up in a curly ponytail and I swear that her bright blue eyes had met with mine before she climbed into the back seat of her truck . I must have ducked down just in time because she continued into her truck and closed the door.
I made it to my truck and climbed in. My truck was a bit older than her SUV but it was a good truck. It had close to 100k miles on it but it had a big crew cab and hadn't failed me yet. I knew she wouldn't be able to see me through the dark tint of my windows and I turned on my tablet and remotely turned on the camera.
When it finally loaded up I could see Kara waiting in the back of her truck. She was texting as she waited for whoever was going to show up today. As I watched I started looking her over. It was no wonder why she got so much attention. Kara was gorgeous. Her blonde hair went down to her shoulders and she had a beautiful face with a pretty smile and dainty nose. She was athletic and fit from years of sports.
Today Kara had apparently dressed for the occasion. She was wearing a pair of cutoff shorts. The ends of the pockets sticking out just an inch or so past the frayed hem in front. Her long, smooth legs led down to her cute feet, her flip flops kicked off onto the floor. She wore a thin black t-shirt that hugged her nicely, and was cut down just enough to show off a sexy bit of cleavage.
A moment later the door opened and a guy climbed in beside her. It was the football player that I had seen once before. He looked excited and eager, like he had been waiting all day for this. Which he probably had.
"Hey!" He said.
"Hey sweetie!" Kara greeted and set her phone down. "You ready to have some fun?"
"Uh huh..." he replied, almost nervous.
Kara leaned in and kissed him. She half crawled onto his lap and turned him to putty almost instantly. As they made out his big meaty hand reached down and squeezed her ass. After just a minute or two of this Kara scooted away from him, laying back against the opposite door. She unbuttoned her shorts and slowly slid her hand into them, the slight rubbing motion indicating that she was rubbing her pussy.
"Common...take it out baby, play with me..." she directed in a sultry voice. He did as he was told and unfastened his jeans. Pushing them down slightly to release his cock into the open. It was probably average length but pretty thick. He took hold of it himself and began to stroke it.
His eyes were fixated on Kara's hand as she also masturbated. They continued like this for a few minutes, Kara teasing him as they did.
"Play with that thick cock..." She would say. "Jerk it for me baby, faster..."
The poor guy just sat there playing with his own dick and doing as he was told. His eyes lit up when Kara pulled her hand out and started sliding her shorts off.
"You want to see my pussy baby?" She asked as she slowly pulled her shorts down until just the top of her shaved mound was peeking out. "I didn't wear any panties today Matty, just for you..."
That's what his name was...Matt. I remembered having a class with him in the past.
He nodded his head quickly up and down. Watching intently as she removed her shorts. True to her word, Kara didn't have any panties on. My eyes were just as stuck on her pussy as his were as I saw it for the first time. Sister or not, Kara had the sexiest pussy I'd ever seen. Shaved bare, her tiny clit barely peeked out through her thin labia. Her slit moist from arousal just barely peeking apart. 'Thank you high def cameras!' I thought to myself.
I had been so caught up in the show that I hadn't realized I was rock hard myself. 'Holy fuck, you're getting hard over your sister!' I scolded myself. But I couldn't look away. As she started fingering herself and rubbing her fingers in little circles around her clit I rationalized that it was ok. That I would get hard watching any hot female doing the same thing.
