Deep inside his mind, Damon always had a small desire to become a merman ever since he first saw The Little Mermaid as a little kid, and this stone could help bring his childhood wish to life.
But he knew that being a merman in public could lead to him being in big trouble, so he decided to go to his apartment and test out his wish.
As he walked closer to his apartment, he could feel himself getting excited. He had always been fascinated with merfolk as long as he could remember, especially with how they swam with tails instead of walking on legs. It was because of his fascination with merfolk that he developed a love of the beach, making his girlfriend happy every time he set up a date there.
When Damon finally reached his bathroom he paused for a moment as he filled the bathtub - He is really going to strip down and go into a tub all because he wanted to become a merman from a wishing stone. Damon blushed at himself for a moment, but he later shook off his embarrassment.
Even if the wish stone didn’t work, he would at least have a nice bath.
Damon eagerly removed his clothes, turned off the faucet, and grabbed the wish stone as he let his body slide in. Damon clutched the stone and closed his eyes - thinking of his childhood wish.
“I wish I was a merman who could live in the ocean and also survive on land.”
He laid there for a moment in the water of the tub, before he suddenly felt the water becoming much more pleasant to be in.
His legs and feet twitched and spasmed out of his control. Rubbing against each other for a moment before seeming to stick together like glue; Damon tried but couldn’t separate them.
His toes then felt funny and Damon opened his eyes to get a good look at them. They were webbed now and seemed to be lengthening. His heels stuck together and his feet began to pull into two blue tailfins. His feet-fins stretched as wide as the bottom of the bathtub. His new tailfins flapped and Damon grinned. He leaned forward to touch them, but his lower body started to grow longer, causing his tailfins to be farther away from his grasp.
Confused, Damon looked down to see that his legs had completely fused into one limb - he didn’t even notice it. Damon was awed but later looked back on his tailfins to see blue scales emerging from his former ankles and up to where his knees once been just a minute earlier. The scales enveloped Damon’s whole lower body, glittering in the light like little sapphires, and stopped for the most part once they reached his hips - there are a few that go up to his torso but otherwise, his transformation was finally over.
Damon looked at the stone and had a big smile on his face, his childhood dream came true.
He was a merman!