Rainbows Curse

Rainbow spasmed there in the grass, tossing and turning as she clutched her head screaming in agony. "What's happening to me?!" Rainbow screamed arching her back.

Just relax and enjoy the ride, Rainbow Dash.

"What? Who-who are you and what do you want from me?!" Rainbow asked the voice she just heard.

I'm the entity that you released from his prison when you read from the book. As for what I want, I want to curse the entire world. As we speak I'm taking over your body, mind, and soul while, at the same time, making changes to your thoughts and anatomy. I'm pretty sure you have noticed the thoughts. Soon I'll be in complete control of your body, and when that happens, I'll take over this pathetic world.

"Why did you wait until now to do this?" Rainbow spasmmed arching her back and gritting through her teeth.

I had to wait until you made your first kill and tasted the blood of the victim. When you killed that stallion you allowed me to enter. Now with the help of your athletic build I can finally get my revenge. Now just relax and enjoy the rest of what is you while you still can.

As the voice laughed manaicaly Rainbows body made its final changes. Her eyes changed to the darkest black with a red pupil in each eye, her muscles became even more defined and bigger, her coat became a darker blue as her mane and tail faded in color brightness, and a set of balls and a 20 inch member grew.

"N-no! I-I-I won't let y-you get away with this! I-I-I will fight back!"

It's too late for that Rainbow. You're now under my curse. You'll no longer be known as Rainbow Dash, you're now Dark Rainbow.