Sisterly love and expirements for the fun [PsychoTeddyxRuki]

[psychoteddy]

Elyssia stretched her leg out into the pool and lightly pushed it as she stared upon her. Many thoughts raced through her mind as she thought about the make-up of water and all its components. With a soft hum, Elyssia smiled warmly at her own reflection. Her dark, chestnut colored eyes glanced in the direction of her sister as she stared over at her, her lower lip suddenly sticking out as she made it quiver. Elyssia just knew, KNEW, that her sister could not say no to that look, nor her pout. Elyssia had already approached her sister once before about this task, and now she was doing so again. She was determine have to her sister agree to watch she wanted.

Elyssia may have been young, only being the age of seventeen, but she was rather intelligent for her age and very advanced. With all her beauty and grace, it was hard to believe at first glance she was a "nerd" as others would put it. Their parents had even allowed for her to build her own lab within their house. This was possible due to the inheritance they had, as well as the multi-billion corporate buildings their father owned and the fact that their mother was a doctor. As such, with their duties, the girls were often home alone, which was just fine by them.

"Sister, come on. I promise we'll have fun. I need someone to test the serums on, and I cannot test them on myself due the fact that I have to write down all the results. You love me right? You tell me that every night and when no one is around. Please?"

Elyssia pleaded with her sister who was near her by the pool. Elyssia could easily put on such an act of innocence and appear so sweet if she wanted. Only her sister ever could see the true side of her and how twisted and demented Elyssia could be. They were very close. In fact, the closeness of their relationship was that of a taboo relationship. Even if they did have their own boyfriends and lovers from time-to-time, they always returned to one another. After all, they had to keep up the facade so no one would grow suspicious of how deep their bond was.

"C'mon. You know you wanna help me out. Please."

 

[Ruki]

Vanessa who happened to look very much like her sister, was the elder of a two, but only by a year and a few months. She was outside as well, sitting on one of their lawn chairs with a magazine in hand, flipping through it, looking up as her sister spoke up.

Vanessa sighed as she saw the look on her sister's face. She knew none of this nerdy stuff her sister did was actually "fun" but she did seem to end up on the butt end of the experiments more often than not.

"Fine, Elyssia, fine." she said with a small shake of her head. It was true that well, they were a bit closer than normal sisters, but she was never particularly fond of being experimented on, however it made her sister happy so she went along with it.

Setting her magazine on the grass, she stood up. "Let's get going then, shall we?"

 

[psychoteddy]

Elyssia purred with excitement as her sister agreed. Suddenly, the innocent, pouting face disappeared only to be left with a smirk-like grin. She quickly stood up and grab her sister's hand, lacing their fingers together as she hurried inside with her. She hummed to herself softly as they ventured to where her lab was. Once they were inside, Elyssia grabbed her white lab coat and put it on over her black swimsuit and pulled up here into a messy bun. She easily found her glasses and soon they were snugged on top of her nose, framing her face beautifully. She slipped her feet into a pair of black, small heals and began to gather some paperwork, organizing them and attaching them to clipboards.

Elyssia turned around and smiled at her sister. She eagerly helped her sister out of her clothing and stood back for a moment as she admired her nude body. So beautiful. When she caught herself gaping, she shook her head out of it and grabbed the other's hand and led her over to table and had her lay down on it. With a soft smile still in play, Elyssia bent her head down and firmly pressed her lips against those of her sister's.

"Thank you. I love you." She said in a gentle voice. "Now! Let's begin!" The gentleness in her voice easily and quickly disappeared as her smile turned into a smirk once more as she gleamed with such joy. "Now, this serum, I am unsure what to expect from it. It's not lethal, I know that. If there are any nasty side effects, I can easily find the cure." she grinned over at her sister as she attempted to contain all of her joy.

Elyssia injected the serum into several spots; both arms close to the elbow, both inner thighs. The last bit was smeared onto two gloved fingers. Elyssia teasingly glided the serum coated fingers along her sister's nether lips, teasingly massaging into them before moving to play with her sister's clit. After massaging and working with her clit, both fingers pushing themselves within Vanessa's tight pussy, rubbing and stroking along her sensitive and smooth inner walls. Elyssia could feel a warmth deep within her, feeling herself become wet. She couldn't think about that now, she had to finish the experiments first. But oh how she wanted sex right now.

Elyssia soon removed her fingers and looked upon her sister, waiting to see what would take place. She disposed of the gloves and grabbed her clipboard and a pen as she sat down upon a stool near the doctor's table where her sister laid. She crossed on leg over the other as she waited.