Mavis Mutant

For Bogleech's Mutant creator with Mortasheen.
 Mavis was a regular baker, and a popular one at that! One day she found an old recipe for cake that was meant to keep you invigorated and strong for days. Thinking she could add it to her menu, but not sure about the ingredients called for, she decided to try it herself. Mavis being an excellent baker she figured she could even double the recipe. It must be like her own herb energy bars so it should be a piece of cake. Well, that piece of cake was the biggest mistake of her life, sure it made her feel strong, even look stronger, but she wanted more, she NEEDED more of it.
And as she ate more, her muscles inflamed with growth, her skin grew taught from the extra tissue behind it. She began to break out in strange, sweet smelling warts that almost oozed the same filling as the cake. She didn't care, as long as she could have more. She would do whatever it took, especially if it got her more of the star ingredient, that gooey, thick, red ingredient.