This is my contribution to the Female Muscle vs. Monsters! monthly theme.

Hyper Girl has been in my mind for some time now. She is an incredibly strong girl who can do amazing things with her body. I started the story Hyper Girl's Law about three months ago, but then Trisha popped up. And after Trisha came Krstl. So I have been ignoring Hyper Girl for a while, and she doesn't like being ignored
So when the FemaleMuscle group announced its monthly theme, I got inspired and wrote this little story. I am sure you will hear more about Hyper Girl in the future!

EDIT 10-Jun-2016: I just published Hyper Girl's Law
I opened the door, and found that the doorframe was completely filled with naked skin, huge muscles and enormous breasts.
I had been a little annoyed when my doorbell rang that afternoon, because I was about make a breakthrough in proving that the Nakai conjecture is false; but I completely forgot about that and could only stare. After a while, I discovered a small bikini with the characteristic H on it.
I like the capital H. It is one of the four letters that is line symmetric to both the x and the y axis. The only capital letter I like better is the O.
“Hyper Girl?” I stammered. It doesn’t happen every day that you come eye to eye with the most powerful woman in the universe – well, eye to breast to be precise, because she is much taller than me.
“Yes Daniel, it is me. We have a date, me and you,” she said in her sexy voice. She rested her hand against the doorpost. The thick oak wood snapped. “Oops!”
Don’t make her angry, I told

EDIT 7-Mar-2018: A new story about Hyper Girl  Luna vs Hyper GirlLuna lifted the battleship with one hand. She watched the huge ship tower above her and giggled. “This is so easy! I don’t even feel the weight of this thing,” she told the audience of 150,000 in the stadium, and the billions at home. “It’s a pity your minds are simply too small to comprehend how powerful I really am.”
She loved to talk like that, and to show off her incredible strength to those puny beings, who had trouble lifting even a minuscule weight like 50 kilograms. She waved the ship around a bit and then she flexed her arm muscles. Her biceps shot up, one on each side of the ship. They soon were big enough to support the ship. She had to be careful not to crush it between her enormous muscles. “Maybe you think this is pretty impressive,” she said. “But you ain’t seen nothing yet!”
Luna made her biceps grow even more, until they were several kilometers high. The battleship vanished between the clouds. “My