Experimentation (Closed)

[zydrate]

"Oh really?" suddenly, she wanted to hear more of her brother's 'moves'.

"You know, no one has ever grabbed my ass Tommy." She said, not realizing she was started to babble about things she'd never told anyone else.

"Did you also know that all through my senior year, not once did anyone ask me out? I didn't even go to prom...which was good for mom and dad seeing as how they didn't need to buy me a dress..."

She leaned her head against her brother's chest, "Fuck... I've never been kissed...or touched..." she said as her hand moved under the water to her pussy, which started to lightly rub.

 

[StFornicate]

"Seriously?" Tommy was flabbergasted by her admission. He shook his head, even as she was cuddling up on him.

"I mean, Mari, you're fucking hot. You should have boys knocking down your door, seriously. What have you been doing all year, anyways?" he asked her. He hadn't expected this. He had fully figured that Mari was popular, and everything that went along with that. She had the looks, she should have been part of the "in" crowd. A crowd he had never been part of, that was for sure.

His eyes lingered in her abundant cleavage for a bit too long. It was then he realized that she was actually rubbing her own pussy, right there next to him! His cock stiffened under the water.

"Hey, why don't you put some music on or something," Tommy suggested.

 

[zydrate]

"What have I been doing?" she didn't realize she was talking a little too loud, "I was studying my ass off Tommy so I could be like you!"

She got up on his lap, straddling him, "I don't want any music Tommy... I want something else...something I can't say for sure but God..." she felt herself rubbing against him under the water.

 

[StFornicate]

Tommy was shocked at how forward she was, straight climbing into his lap and straddling him, her body dripping water onto him, her tits pushed up right in front of his face.

Tommy's hands went to Mari's hips. "Whoa, whoa, Mari... you're my sister! What's gotten into you?" he asked her, though he knew full well. The drugs must have really started kicking in now. Maybe the alcohol helped kick-start the effects? He wasn't sure.

His cock throbbed in response to the feeling of her body against his; he could feel the heat emanating from her pussy, pressed right against his own, raging stiffness.

 

[zydrate]

"Come on Tommy..." Mari said as she planted little kisses on her brother's face and neck, still moving her hips against him, "You can't say you can't feel it too...just like I feel you.." she said, giggling.

She then noticed he was staring right at her breasts and she looked down them too. Without a word, she used one hand to reach around her and loosen the tie of her top, which just seem to flutter away in the water, baring her breasts to him, "Do you like these Tommy?"

 

[StFornicate]

Tommy was about to panic. Yes, he had surreptitiously dosed his own sister with a sex party drug. But it was for observation! He had no idea that it would unleash some weird incestual lust from within her!

And then, she bared her breasts to him. Right in front of his face. The thin fabric falling off her, her nipples full and erect before him.

All he could do was nod in response. His cock throbbed beneath her as she moved against him, rubbing herself on him lewdly.

A voice in the back of his mind screamed that this was not okay, even as his hands moved up to greedily grope at her luscious young tits!

 

[zydrate]

"Oh God...yessss..." Mari hissed when she felt her brother groping her breasts and that made her grind against his cock harder. She could feel the harden length rubbing against her pussy and even in the water, she knew she was dripping wet from her own juices.

"No one has ever touched me like this Tommy..." she rested her forehead against his, her eyes locked with his as her breathing increased.

 

[StFornicate]

Tommy's eyes locked with his sister's when she pressed her forehead against his and declared breathily that no one had ever touched her like this, even as she ground herself firmly against his stiffened member.

All he wanted to do was tell her not to stop, to keep going, to enjoy herself, but he knew this was wrong.

She was already out of her mind on this drug though. Who knew what she might do if he didn't make sure he kept her occupied?

He squeezed her breasts harder, the plump mounds in his hands, and started mauling them together. Giving in to his own lust! He gritted his teeth, and released her.

"Mari... We shouldn't be doing this. You're my sister!"

 

[zydrate]

Mari pouted at her older brother, and though she didn't know it, she gave him a quick kiss on the lips, "Come on Tommy...please? I won't tell.." she said, sighing content as he played with her breasts.

While he was busy doing that, she took one hand and put it in the water. She reached in between them and tried to work her hands into his shorts...she needed to feel his cock and free it...she needed something in her as she ground him harder, "Please Tommy..." she whimpered.

 

[StFornicate]

"Mari, seriously, stop!" Tommy insisted, his voice growing harsher than he wanted it to be. She was reaching for his cock, he knew it. He had to draw the line. He knew, once she got a hold on his throbbing dick, there would be no going back.

His hands found her hips then, and he pushed her back away from him.

He meant to only get her back off his lap a bit, but let her still be straddling him.

He certainly didn't mean to pick her up and dump her backwards, head over feet, out of his lap and into the hot tub! But that was exactly what wound up happening!

 

[zydrate]

Mari fell into the water and her cry was cut off as she fell!

Gasping for air as she resurfaced, she slapped at the water as she found her footing and hung onto the edge of the hot tub, her breathing hard and fast. What was happening?! She was drunk, that was for sure but God, she was feeling something deep inside her.

Hoping up onto the side of the hot tub she leaned back and then finally, just laid down, her feet still danging in the warm water.

She closed her eyes and sighed deeply as her right hand slowly moved from between her breasts, down her stomach....ending up between her legs...

 

[StFornicate]

Tommy slipped back down to sit in the water, and was about to apologize to Mari for pushing her into the water, but then she was pulling herself up out of the water, her hands caressing her gorgeous nearly-naked body, until they were down between her legs.

He could hardly believe it. This concoction was far more powerful than he ever realized it could be. Perhaps her small stature made the drug more potent for her than it was for him. Perhaps she was simply more susceptible to the effects. And perhaps it was also a function of her not knowing she'd been dosed.

Whatever it was, Tommy couldn't take his eyes off his busty topless sister as she toyed with herself. He leaned back, and placed his hands behind his head. His cock was still quite hard under the water.

This was so wrong. He stood up, grasping the obvious hard-on tenting his dripping swimming trunks, and stroked out his massive length in front of her...

 

[zydrate]

In a wet heap, Mari let her head lull to side as she watched her brother stroke himself. She felt herself smile as she undid the strings to her bikini bottoms and let it slip off. This gave her easier access to her pussy which was wet from a combination of the pool water and her own juices.

She let a finger flick her clit as she moaned while continuing to watch her brother. For some reason, she felt her mouth go dry as she longed to feel his cock slide into her mouth and in between her lips. Her pupils were huge as they showed the hints of her being drugged up. Would she remember any of this later? Did it really matter right now?

No.

All she wanted right now was to feel that cock fucking her...as she was fucking herself now with her fingers.

 

[StFornicate]

Tommy watched as she untied her bikini bottoms and let them float away in the hot tub, sitting naked on the edge before him, and started fingering her pussy. Lewdly. Legs spread wide before him, displaying her every charm.

He was standing before her, stroking his cock over his swim trunks. He was growing harder and harder, and significantly bigger by the moment. He knew he shouldn't, but he was rapidly losing the ability to give a shit about right and wrong in this instance.

This was, after all, exactly what he'd made this drug for. To turn a woman into a sex fiend. It worked marvelously on his sister. For the sake of his research, it would be a terribly mistake to deny her the sexual attention she now craved so desperately.

And so he peeled down his trunks, and stepped out of them, finally exposing his massive, throbbing member to his sister.

He moved towards her, their eyes locked. He stepped up onto the seat, standing right in front of her, his huge erection in front of her face. He reached out to her and ran his fingers through her hair.

"Suck my cock, sis."

 

[zydrate]

If Mari had known what her brother did to her, she would have beaten the shit out of him...that is if she wasn't inebriated with the drug he had given her...

But as it was, Mari was horny beyond words and every part of her body screamed out to be touch. Her pussy begged to be fucked. Her ass begged to be slapped.

And her mouth? She wanted something in her mouth and it wasn't her finger so when her brother offered her his cock, she didn't hesitate. Reaching up with both hands, she stroked the length before leaning forward and taking it in between her lips and then in her warm mouth until it was sliding down to the back of her throat. She looked up as she did sucked on his dick, her eyes locking with his...

 

[StFornicate]

Tommy groaned in pleasure as his sister started sucking hungrily, needily on his rock-hard dick. Fuck that felt good. "That's it, just like that," he encouraged her, running his fingers through her wet hair, watching as his cock disappeared between her full lips again and again.

He could hardly believe the effect his drug had had on her. Never in his wildest dreams did he think she would respond like this!

He smirked as she sucked on him.

Clearly, more research and experimentation would be necessary. Good thing Mom and Dad were leaving them tomorrow...

 

[zydrate]

With his cock in her mouth, Mari gave her brother a chuckle as she stroked his length with one hand while the other hand squeezed his balls.

Mari pulled away while still rubbing Tommy's dick, "You like this Tommy?" She asked and then kissed the tip before going back down on her brother. She worked her head back and forth, taking it down her throat as far as she could. There were a few gagging noises coming from her but it was washed out by the sound of the water whirling in the hot tub.

 

[StFornicate]

"Fuck yes," Tommy replied, watching with rapt attention as his own sister sucked his cock with quite a bit of horny enthusiasm!

He wondered if she understood the root of her increased libido. Or if she would even remember any of this tomorrow. It was impossible to know, of course... And would probably be difficult to extract the truth from her in the morning.

He ran his fingers through her hair, tempted then to take control of her head and fuck her gorgeous face, but he resisted the urge. He wanted to see what she was willing to do all on her own.

His cock throbbed with pleasure. She was damn good at sucking dick! "You are one hot little cocksucker..."

 

[zydrate]

Mari nodded eagerly with her brother's cock in her mouth as she continued to lick it...suck it....deep throat it....

Until she pulled her face away and took a step back to look up at her brother, "Please Tommy..." she reached to her big chest and took them to wrap around his cock as she moved back and forth... "Fuck me big brother..." she said as she kept moving, her eyes looking up at his.

 

[StFornicate]

Tommy groaned in pleasure when Mari wrapped her big firm titties around his cock and started to squeeze the girls. And then she was begging him to fuck her!

This stuff had truly turned her into some kind of nymphomaniac! Tommy's hips immediately responded to her begging, pushing his massive dick up between her lusciously firm tits. He had his hands on her now, on her shoulder and her back, holding her body firmly against his as he started to hump her chest.

Titty-fucking never felt so damn good...

 

[zydrate]

Looking down, Mari watched as her brother's cock moved up and down in between her breasts. She tossed her head back and imagined him fucking her and with that, she rubbed her legs together beneath the water.

When she felt his hands on her shoulders, she leaned her head down and would lick the tip as it popped up and run her tongue around it each time.

 

[StFornicate]

Tommy could hardly believe he was really doing this. Titty-fucking his drugged-up sister! It was so wrong, but she was so fucking hot, and he'd certainly entertained these ideas in secret before.

But he never thought those fantasies would ever come true!

He pulled away from her, but kept his hands on her, pulling her back into the hot tub with him, guiding her to straddled his lap as he sat down. Her pussy was hot, rubbing against his firm length under the water.

"Get that dick inside you," he growled at her...

 

[zydrate]

Not realizing the gravity of the whole situation, Mari only wanted to feel something inside her. She rolled her hips and rubbed her pussy against her big brother's big cock. She had her hands on him shoulders as she looked into his eyes and only smiled when he spoke.

The problem was, at least for sober Mari, she had never fucked anyone, but drugged up Mari didn't realize that. In fact, the Mari now needed something inside of her and she didn't care what it was. Whether it be fingers or her brother's cock, it was going to happen.

Reaching down between them, Mari guided the head of his cock into her pussy and stopped there.

"You want it, you have to take it..." she heard herself say.

 

[StFornicate]

Tommy's fingers found his sister's hips; he could feel her abundant wet heat on the thick head of his cock. His fingers dug into her flesh, and he pressed her firmly down onto his now throbbing, hungry dick.

Jesus, but she was fucking tight! Tommy grunted as he felt her lips slowly pry apart around him. He looked up at his sister, saw her dilated pupils, her heavy eyelids, and knew she was now out of her mind on his drug concoction.

It occurred to him that this was probably, undoubtedly, rape. In every sense of the word. She had no idea what she was doing.

He pushed her down on his cock anyway, and grunted in pleasure as he felt her tight cunt clasp around the head of his cock. He knew then that it would be a most erotic struggle to get himself fully embedded within her...

 

[zydrate]

Mari was oblivious to the pain she was in. Instead, all she felt was pressure as she ground down against Tommy's hips, feeling his huge cock inside of her. God, she wanted more and all she did was shift her hips a bit and suddenly, he was buried into her to the hilt. She cried out a little until she started to rock against her brother, moving up and down on his cock slowly, savoring the feel of how he was so big and how good it felt...

The water of the hot tub splashed to the sides as Mari slammed herself down on her brother's dick, feeling it moving in and out of her pussy. She dug her fingers into his shoulders as she used them for leverage. Letting go momentarily, Mari grabbed Tommy by the hair and guided his mouth to her breast until his lips found her nipple...all just seemed to encourage her more, moving hard against him...