Dustin grabbed the green tonic with his left hand, and took a shot of this new liquid. It was almost gooey in it's form, and it tasted awful.
Actually, it didn't taste all that bad. By the time he had finished the sip, he realized he loved the taste of this new liquid.
Suddenly, Dustin felt a rush of energy coming from his body. He felt his frame start to change, and he smiled with glee.
The first thing he noticed was that he felt like he needed to stand up.
Not because he wanted to, but because he felt his tailbone expanding, and growing outwards towards his other body parts.
As his pants ripped fully, he felt the relief of his tail bursting out consume him, and he felt it slowly slither to a length of a foot long or two.
As he felt his tail widen and lengthen, he also felt his teeth sharpening from the inside.
He listened as his skull cracked, and then sprouted upwards, allowing his jaw to expand.
While his head was getting taller, his teeth grew longer inside of his forever-expansive mouth, and then sharpened an incredible amount.
He then felt the DNA structure of his hands adjusting, fixing itself to make slightly bigger hands with four claws instead of five fingers.
As his fingers finally became claws, his tail stopped developing, leaving Dustin with a new interesting body.
Dustin smiled and realized his body was completely different.
It was incredible how much it had changed from a little amount of that delicious liquid.
He knew he needed more. He wanted to fully evolve into a beast, because it just tasted so good, and was even more amazing than the taste of that liquid.