Dina and Andi. Competitive sisters with a kinky side

“Andi, you need to see this, I got this book in the mail today. It sounds insane and crazy, but we need to look at it” Dina shouted when she came in the door of the apartment they shared.

“yeah, yeah, I`ve heard it before, you always have a crazy scheme planned” Andi laughed and shook her head. Her sister, was something between a little to wild and a little to gullible so not every ideas she had was a good one.

The girls gathered in the sofa, looked in the rule book, checked out earlier writings and tried to find something that made sense, but since it looked like magic and unrealistic, they mostly laughed and talked about that nothing like this would exist. Most of it was just weird and so crazy that it could not possible be real.

Dina and Andi are sister, as most sister they have always been close, even with being so competitive that it could get heated from time to time. But in the end they relationship is based on love and trust, so nothing could get between them.
Dina being 19 and freshman in College is the younger Sister. The classic sexy college freshman with a wild and crazy streak. Long straight blonde hair, blue eyes, C cup and a nice bubble ass. She considers herself bisexual.

Andi is the older girl being 20, She is straight, and a little more straitlaced than her sister, but she also can get wild when it is called for. Attending the same college, the sister familiarity, the bodies are similar, so they always share clothes. But where Dina is Blonde, Andi are dark haired, she is also also 5'8 while Dina is 5'7. In general, they are close sisters, both in life and looks. Both are single now.

Smart girls, Dina plans of becoming a doctor, while Andi is on her way towards law school. Of course, still a couple of years away, but they both are driven and very conscious of not letting down the memory of they late parents. And they parents always wanted them to follow in they footsteps, therefore the plan of being doctors and lawyers.

The girls are naturally sharing an apartment since they are family and best friends. The girls are rich, partly because of the sadness of losing they parents, so they inheritance and insurance money set the girls up nicely. The apartment ownership and money left behind was all in a trust, that paid out 3000 dollars for each girl every month. It would continue doing this till both girls finished college, then the rest would be split between them. With the insurance, the inheritance and the apartment the girls knew how comfortable and easy the start of they life would be, they would easily have a couple millions each when they would graduate college or grad school.

“Dina lets test this book. I don’t believe it to be real but what the hell, what if…” Andi said and took lead as she usually does as the responsible big sister, and to avoid things getting of the rails to fast.

Dina looked at her sister while her mind went in hundred, this could be something… Andi opened the book, took her pencil and started writing.

New Rule: Dina always keeps up with her manicures, long clear black nails.

Both the girls are shocked while they see Dina’s nails is growing, shaping and turning black.

“Wow, this is insane sis, we must use this, and you know it, you know what we both are thinking. This is perfect to explore the world of kinks fetishes. As you know I am crazy interested in trying all the things I am too afraid for. And I know you have your midnight reading list.” Dina commented and watch Andi flush up while her mind was scrambling with risk analysis and pro cons list but her mind had already lost to her libido.

“Yes, I know what you mean, and I agree, we should use it like this until we have tried everything we want. But after that we will make the world better. Deal?”

“Perfect”. Dina was smiling ear to ear.

So, the girls started talking, planning and getting a scenario up. They agreed that they could try out things, then undo things that was done and start again. But since both loved to compete, they also loved the idea of making the game more unpredictable.

The idea for the first part of the games started to form.

They would use a dice to make it unpredictable, and they would not waiver from it. The first one that does is the loser of the first game.

“Andi let us start with this; we will put in the safeguards first. Then we will start shape the rules for the first game. I am thinking the winner of each game will get the other one’s allowance until a new game is completed” Dina said

“Sounds perfect. To minimize that each of us is cheating, we will write down one rule, or one dice roll each until we are satisfied with the limits of the game” said Andi.

This my first story, hopefully, it wont be catastrophic.
But please give me feedback, i will continue writing this if you enjoy it. Good or bad, ideas or suggestion, i want to hear everything My first language is not English and not really used to write it so it will be a adjustment but i am doing as good as i can.