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[Undercoverseeke]

"Size 36D," she replied, reaching up to push her breasts together as she looked herself over. "I wanted something that would get attention. Might need to return this for the next size up... though the too-tight look is kind of in..."

She continued to play with her breasts under the pretext of seeing how they fit into her bikini top... and continued to rub her foot up to his knee, then to the lower part of his thigh. "You guys are so lucky, you know. You can go around shirtless and no one bats an eye. We have to keep the girls confined..."

 

[StFornicate]

"I think it looks pretty good," Tommy replied, leaning himself back.

"And you girls still came out ahead on the deal. Just cuz you have to wear a shirt... It doesn't matter. You've got BOOBS!" he said, and laughed, before reaching under the water and grabbing Tiffany's foot, and yanking her body towards him, hoping to make her dunk herself unexpectedly under the water!

 

[Undercoverseeke]

Tiffany yelped as she vanished underwater, getting a good amount up her nose before she flailed to the surface. In her struggle to get above water again she'd popped entirely out of her top, though this time she genuinely didn't notice.

"What was that for, brat?"

 

[StFornicate]

"That was cuz you're being a perv and trying to play footsies with me!" Tommy replied quickly, splashing some water in her direction.

"And your tits are out again. The bikini top is really not very good at holding you in!" he said, and reached forward, attempting to grasp her exposed nipples in his fingers and tweak them!

 

[Undercoverseeke]

"Hey, don't pretend you didn't want it," she smirked. "And that you're not enjoying the show."

She gave a yelp as he pinched her nipples... and a shock of pleasure went through her. Oh, wow... she was NOT expecting that. But man, was that hot...

"Oh, who's the perv now?" she demanded, reaching down into the water to grab for his ass.

 

[StFornicate]

Tommy laughed. "I never said I wasn't a perv!" he replied. "You're the one lettin' your tits hang out all over the place!" he said.

He let her reach under to grab at his ass, and in fact did the same to her! He moved towards her under the water, and in the next moment they found themselves with their legs all entangled, hers around him, all their hands on each others' butts, their crotches rubbing right together under the water as she was now straddling him!

His erection was quite obvious as it pressed against her. Their eyes locked, and he squeezed her firm, big round butt in his hands!

 

[Undercoverseeke]

Oh my... he was excited. If the grabbing of her ass wasn't an obvious sign, the hard length of his erection rubbing against her crotch was... and suddenly it was no longer just the hot tub making her hot and wet down there.

"Someone's grabby," she laughed, squeezing his butt again. "You this hands-on with all the girls?" As she spoke she ground against him just slightly, watching for his reaction.

 

[StFornicate]

Was this some kind of game she was playing? Grinding her barely-covered pussy right against his rock-hard cock, just enough for him to notice?

Well, whatever it was, he could play as well as she could!

"Only the ones who like to flash me their tits!" he replied, his eyes moving downward to the abundant, bare flesh of her chest, practically right in his face!

 

[Undercoverseeke]

She laughed and ground his hips again, bobbing forward juuuust enough to let her breasts edge tantalizingly close to his face. Then she pinched his ass and got up, climbing out of the pool.

"See you inside, my hottie big brother," she told him, pulling her bikini top back up. She wiggled her butt at him and sashayed into the house. Would he chase her? Wait to surprise her? Pretend tonight never happened?

 

[StFornicate]

Of course she would get up and leave in such a manner... Tommy rolled his eyes as she sauntered off, having just been given a most delectable eyeful of tits!

What was her game? What the hell was she trying to do to him? Get a rise out of him? Was she really just messing with him to see if she could give him a boner?

He shook his head. What a twisted game for siblings to play! He leaned back in the hot tub, thoughts running rampant through his mind, trying to calm himself down enough so he could stand up without having this massive erection tentpoling his swim trunks.

Finally the hardness subsided, and he got out. This trip to the hot tub had done absolutely zilch to calm him down. He decided to just play it cool with Tiff when he went inside...

Now where the fuck was she, anyways? He headed for the basement to run another load of laundry...

 

[Undercoverseeke]

Tiffany went into the bathroom and stripped off her scrap of a bathing suit, hanging it over the shower rod to dry. She toweled herself off slowly, letting the rough fabric of the towel glide over her sensitized skin. Mmm... that had been hot... she may have been trying to get a reaction out of Tommy, but it had backfired a bit, making her all hot and bothered too.

She briefly considered self-pleasuring herself here in the bathroom, to get it out of her system. But somehow the bathroom seemed like the wrong place to do that. So she finished drying off and hung the towel up, then headed for her room.

Sure, her bedroom was down the hall from the bathroom. But what were the chances that her brother was going to come upstairs and see her stark naked anyhow...

 

[StFornicate]

Nope, not downstairs, Tommy thoughts, quickly running another load of laundry before heading up the stairs, drying himself off with a fresh clean towel as he went.

He looked around, but didn't see her in the living room or kitchen, shrugged, and headed up the flight of stairs...

Just in time to see his sister's bare ass disappear into her bedroom! Good Lord, now she was walking around completely naked!?! He shook his head. This was getting weirder and weirder... nevermind that mere minutes before they had been literally grinding their crotches against each other in the hot tub! That had been wrong enough, way over the line and way beyond generally acceptable sibling behavior!

He crossed the hall and went to his own room, and shut the door behind him. His sister was being weird, that's all there was to it. Whatever had gotten into her, he hoped it would pass! His own twisted, incestuous desires be damned, he could never really act on them.

Could he?

 

[Undercoverseeke]

Well, if he saw her, he wasn't reacting. Ah well. The game could resume tomorrow, maybe...

Okay, girl, what the fuck are you doing? some rational part of herself demanded. This is your brother, not your boyfriend! Do you really want to go down this road? Isn't there a law or something against this?

But somehow, the knowledge that this was incestuous and forbidden just made it all the more exciting.

She pulled on a T-shirt and went to head to bed. She'd think of something else to do tomorrow... maybe something that could tempt him a little more...

 

[StFornicate]

Tommy peeled off his swimming trunks and pulled on a pair of pajama pants, finished drying himself, and sat down on the side of his bed, his mind racing through a thousand different thoughts.

He felt himself being drawn to his sister. He knew these feelings, these thoughts, were wrong, completely and utterly; which only served to fuel his desire for them.

He checked the time. It was only nine o'clock. Their parents were gone. The only thing they had going on tomorrow was Tiffany's little girl-party. Why the hell was he thinking of going to bed?

He opened the door and crossed the hall, knocked on his sister's door; it wasn't shut all the way, and creaked open.

"Hey, I'm bored, you wanna watch a movie?"

 

[Undercoverseeke]

Tiffany was curled up on her bed, flipping through a magazine, when Tommy knocked. She glanced up at the doorway curiously. She was wearing an oversized T-shirt for sleeping, but no pajama pants, and if he cared to look her silky violet panties were clearly visible.

"Hmm? Oh... sure. What movie did you have in mind?"

 

[StFornicate]

"I don't know, whatever, something good, we got a ton of blu-rays," I said.

A devious thought came to mind. "I know Mom and Dad have a bunch of movies hidden away in their room. I've always wondered what they're hiding in there. C'mon!" I said with a smirk, waving her towards me, my eyes noting the lovely view of her silky purple panties! My cock twitched in my pajama pants as I looked at her. That tee-shirt would just barely cover her ass...

 

[Undercoverseeke]

Tiffany smirked a little. If they were hiding DVDs in their room, it had to be something good. Or maybe they were getting worked up over nothing and it was a bunch of stuffy foreign cinema. Then again, foreign cinema was often dirtier than what came out in the States...

"Think they'd mind if we sat on their bed while we watched?" she asked. "They've got the best TV in the house in their room..." She got up from the bed and went to the door, ready to head to the semi-forbidden territory of their parents' room.

 

[StFornicate]

"They would totally mind," Tommy replied, following his sister closely to the door, and then down the stairs towards their parents' room.

He pushed open the door, and looked at their parents' big screen plasma TV hanging on the wall, and the king size waterbed that dominated the room. Tommy slid onto the bed, grabbing the remote and turning on the TV as he got comfortable.

"Find us something good, sis..." he said, leaning back to watch...

 

[Undercoverseeke]

Tiffany rummaged through the DVD shelf, then huffed. "Nothing good on the top shelf. It's all historical dramas and Law and Order box sets."

She bent over to investigate the lower shelves, completely forgetting for a moment that she was pantsless and showing off her pantied ass (and other assets) to anyone who cared to look. When she spotted what was on the lowest shelf, she grinned devilishly. Jackpot.

"Holy crap, Tommy, they've got porn down here," she giggled, pulling out a couple of cases. "And some of this looks really raunchy. I'm talking chains and leather here..."

 

[StFornicate]

Tommy smirked as his sister bent over, giving him a perfect view of her tush; the big tee shirt she was wearing fell forward as well, and from his vantage point he could see her amazing, big, round tits hanging down from her chest quite clearly!

He grabbed his cock through his thin black pajama pants and stroked it until she stood, proclaiming that they'd hit the jackpot! He let go of his dick, though did nothing to hide his impressive bulge.

"You're fucking joking," Tommy replied. "Let me see."

 

[Undercoverseeke]

"I'm fucking serious." She grabbed a good half-dozen DVD cases and spread them out on the bed. The provocative covers said it all -- their parents might not have the most exciting sex life, but they sure enjoyed seeing things go wild on the screen. There was one that looked like a BDSM porno, and even a lesbian porn flick -- maybe for Dad when he was alone?

"Should we?" she asked, raising a daring eyebrow at her brother. "Might be educational..."

 

[StFornicate]

"Should we?" Tommy asked, moving towards her on the bed to peruse the titles his sister had spread out. This was quite the treasure trove! He couldn't believe what he was seeing laid out before him.

"Why wouldn't we?" he asked, a devious glint in his eye, and a wicked smile coming across his face.

"Maybe Mom and Dad aren't quite as lame as we thought..." he said. "Who knows, maybe they've got some handcuffs or something hidden somewhere around here..." he looked around, scratching his head, wondering where his parents might hide that kind of thing. He shrugged. "Well, we got a couple weeks to find them," he said. "Go on, pick one and put it in already!" he said, sitting back again. He could feel the blood rushing to his loins as he watched his sister...

 

[Undercoverseeke]

Tiffany smirked a little. "Which one do you think handcuffs the other?" she asked, giggling as she picked up one of the DVDs. It had a picture of a woman in manacles and a blindfold on the cover. "Makes me wish we had a hidden camera, haha..."

She hurried over to the DVD player, then bent over juuuuust enough to give him an eyeful of her ass as she loaded up the movie. Then she went back over to the bed and sat down beside him. Already there was a prickle of excitement going through her, making her rather warm down there...

 

[StFornicate]

"A hidden camera?? You really wanna watch Mom and Dad fuck? Ewwww!" Tommy teased his sister, poking her side as he did before the movie started.

And start it did, with a long shot of a brunette woman bound with shackles and chains, in a skin-tight leather outfit, her mouth stuffed with a red ball gag.

"Oh, wow, this just got serious," Tommy said...

 

[Undercoverseeke]

"Hey, it'd be educational," she retorted, squirming at the poke. "And we could maybe use it as blackmail if they really did anything super-kinky..."

Then the movie started, and she felt her jaw drop. Wow... this movie wasted NO time in getting started. Unexpectedly she found the tingling between her legs getting stronger... especially as a man stepped out of the shadows behind the chained woman, fingering a leather riding crop...

God... that man could pass for an older version of her brother. If she were watching this alone she'd be fingering herself. But he was sitting right here, and while it was one thing to tease and taunt him, was she really ready to start masturbating in front of him?

She continued to watch, one hand anxiously rubbing up and down her thigh as she did so, biting her lower lip as she fought her budding arousal.