Kevin sat in his room, with one hand down his pants stroking his semi hard cock, while using his other to navigate
justfans.com
. Kevin was an 18 year old senior and like most boys his age was seemingly always horny and quite curious. He had a girlfriend of over a year, one he cared for quite a bit. But that didn't slow down his desire to jerk off to porn, sometimes a few times a day. They started having sex a few months back, both being each other's first. But his girlfriend Mary was petite and didn't enjoy Kevin's 8 inch thick cock. She tried to give him a blow job a few times, but could barely manage to get past the head and so it usually turned into a hand job. And the sex he thought was good, but it had to start slow, their was never any quickies.
Kevin had heard of this site and had gotten curious enough about it that he spent $100 cash to buy a preloaded credit card in order to subscribe to someone's account. He might have been 18, but his parents still watched his account spending, so he figured this would cover his tracks. And sure, he could get plenty of porn for free, but the alure of amateur girls posting pictures and videos really got him excited. Even some of the hot girls at school had rumors going around that they had accounts on there, but Kevin doubted any of that. He created an account and punched in his card, loading the balance. Now it was time to find that hottie to subscribe to. He scrolled through different genres, miles, cougars, goth, even barely legal, although those girls only reminded him of his girlfriend, small and petite, although cute. He then clicked on the college girls tab. He was mesmerized in fantasy as he looked at the girls promo photos, imagining what he would be in for come college next fall. Their was plenty of blondes, Asians, some black chick's, but Kevin kept scrolling trying to find that perfect girl to spend his money on.
His jaw dropped. There she was. Kevin's older sister by 4 years, plain as day scantily clad.
"HOLY FUCK" Kevin muttered.
Kevin got teased quite a bit when they were both in school together and even now, once in a while the teasing would happen again. Kelley was hot. Their was no way around that. She had a nice curvy ass that could turn most heads, but she also had absolutely massive tits. Kevin swore they got bigger every time she came home from college. And of course his friends always ribbed him about her. They would always say they were joking, but he also knew damn well that anyone of them would hook up with her given the chance to.
Damn was he surprised. She never acted or dressed slutty by any means. He only knew of one or two boyfriends and her clothes were never overly revealing. But their she was, the same fine smiling sister he knew, with brunette hair and her massive tits. Except now they were spilling out of a bikini top that was intentionally too small. Kevin's cock grew harder as he continued to stroke it. Her profile read:
Busty college coed with natural 32hh tits and a nice ass, offering you plenty of pics and videos teasing you with miles of curves!
"Damn" Kevin muttered. He shook his head in surprise, both at his sister apparently doing porn and at himself for being aroused by it. He knew it was wrong, but he kept stroking, imagining what she looked like nude, those giant, soft tits bouncing around. It wasn't long before he let out a soft moan and unloaded his balls into his boxers. Post-nut clarity sunk in and as he washed up, Kevin felt a bit guilty and disgusted with himself. He felt like he violated his sisters privacy on top of masturbating to her picture.
He went down to dinner shortly after and all while he helped with cleaning up, he kept having to readjust his hard cock into the waistband of his shorts to try and keep his parents or younger sister from seeing his pitched tent. The thoughts kept racing through his mind about his sister, which kept him constantly erect. Kevin kept trying to push the thoughts away, but they pushed right back in. The rest of the evening and night was spent trying to fight those sultry thoughts of his sister. He sat there in bed, unable to fall asleep with wild incestuous thoughts and a raging hard on. He rolled his eyes in surrender, got up and grabbed his laptop. Kevin logged on and scrolled through the site until he found that familiar smiling girl, the one he loved and cared for like a sister, well, because she was.
"Dad always said we should support each other" Kevin whispered to himself as he clicked 'yes' to the 3 month bundle, emptying nearly the entire balance of his
justfans.com
account. He rolled his eyes at his own little joke.
Kevin put his headphones in, slid down his shorts and started jerking off while watching his big sister's welcome video. She said her welcome and thank you for supporting her with enthusiasm as she bounced up and down causing her massive tits to bounce, nearly popping out of the lavender lace bra she was wearing.
"I hope I can help you cum again and again!" his sister said with a wink as she moved her hand towards the front clip of her bra. Steve was furiously stroking himself at this point. His heart was tense with anticipation as she unclasped her bra and her tits pushed their way out and into the open. Kevin's jaw hit the ground once again.
"Jesus fuck" Kevin muttered with a grunt as he kept stroking. She massaged her tits, circling her fingers around her huge areolas and perked up nipples. He could here her giggle and moan as she teased herself and her audience. Kevin let out a grunt as he shot a huge load of cum all over his chest and stomach. He laid there in amazement, still in awe at what he just watched. It was better than any porn he had seen. One short teaser of a video and Kevin was hooked.
Over the course of the next two weeks, Kevin jerked off on average, 3 times a day to pictures and videos of his sister. He never knew lingerie like that existed before, the lace and straps, the thongs and bikinis. He woke up in the morning, jerked off, did so once again as soon as he got home and once more before bed. It got to the point that even his girlfriend asked if everything was OK, seeing that his mind was occupied elsewhere. The couple of dates they went on, even the sex with her at the end of the night, Kevin spent thinking about Kelly.
It was Friday after a long week at school, and Kevin rolled into the driveway at home to see his sister's car there. Shit. He completely forgot it was her spring break week. His heart pounded. This was going to be a tough week trying to keep the excitement in his pants down. He walked and was greeted with a long hug from Kelly. Good thing he had jeans on. Kelly did most of the talking, while catching their mom up on college life, while Kevin just stood there listening in, trying to keep his eyes at an appropriate level. Thankfully she had a baggy college sweatshirt on, but her chest still protruded out on her tiny frame, but her skin tight yoga pants were going to be difficult to ignore. As she excused herself to her room upstairs, Kevin heard his mom ask,
"Kevin, help your sister with her things upstairs, please!" as she wandered off to the kitchen.
He grabbed her laundry basket, which he could easily make out her bras and thongs out amongst her other clothes. Some of which he recognized from her photos she posted. He wasn't sure if it was a blessing or a curse, but he followed her up the stairs and with no one looking, he kept his eyes focused on her curvy ass in those tight yoga pants. Every step she took he swore he could see through them. They seemed to be damn near sheer. He could even make out the outline of her thong at the top of her ass. He kept the laundry basket at waist level to hide his fully grown bulge. Getting to her room he set the basket on her bed and quickly turned around in fear she might see his excitement.
"thanks brother!" she yelled as he walked out of her room and towards his. This was going to be tougher than he imagined as he ducked into his room, locked the door and whipped his cock out. He didn't even lay on his bed, he pulled a thong of Kelly's he snuck put of the laundry basket, wrapped the tiny fabric around his thick cock and jerked off, eventually blowing his jizz into it, soaking the thong through.
The rest of the evening proved just as difficult, his post-nut clarity didn't talk him out of checking out his sister nor did it clear his mind. She came down to dinner still in her near shear yoga pants and a t-shirt that was snug enough that her huge mounds were impossible to ignore. Kevin stayed rock hard all through dinner and as she helped him clean up the kitchen, she managed to bend over several times. He tried desperately not to look, but fuck was that not going to happen. Every time she did he got a long enough look to see that had a wide pink lace thong on. As the night wound down he snuck upstairs to shower, where he jerked off trying to once again clear his mind. This was going to be a tough week ahead he told himself. He went to his room, opened his laptop and found a notification from
justfans.com
. Kelly had just posted a new video. He opened it to realize she had just recorded it, he could easily make out that it was on her bed that he had sat the laundry basket on earlier. She was naked, with her ass up, pointing at the camera. She had a red jeweled plug poking out of her ass as she masturbated with a microphone looking vibrator. His heart was pounding out of his chest as he stroked his cock, faster and faster. The hum of her vibrator mixed with her gasps and moans was making Kevin moan as he jerked himself closer to orgasm. She twerked her ass, causing Kevin to mumble "oh fuck yeah" when he heard a shriek. He whipped his head around to see none other than Kelly standing there, hand over her mouth with a look of terror mixed with disgust. SHIT. SHIT. SHIT. Kevin though. I never locked the door. I just got caught not only jerking off, but doing so to my sister's newest porn video. They were both frozen. Their eyes were locked. He could hear his parents from the living room shout,
"What's going on up there?"
Kelly slowly backed out, their eyes still locked until she slowly closed the door. His heart was stopped, his stomach fell through the floor.