Mary thought only half of the vial wouldn't remove her humanity a lot. She also she expected she could breathe out of the water afee transformation. She even thought about the possibility that the vial would be fake, but was convinced it would be real because nobody wouldn't have prepared such elaborate vials just to trick her.
She opened the vial, and she drank about half of it.
"Hm... This tastes really weird." Mary said, and felt tingling from all over her skin. After a little while of pain, she found her skin is covered with orange scale.
She wanted to see more about her transformation, so she went to the mirror in bathroom naked. Exactly, she could see more about her change. Unlike other parts of her scale skin, belly part was white. She looked her breasts and was a little disappointed. Her c-cup breasts got smallser to a-cup.
She guessed, "This is probably because goldfish don't have them. However, I want to see more!"
She saw her face and surprised by an strange looking face. It wasn't the face of either a human or a goldfish. However it resembled her previous face, but with both eyes almost moved to side.
"So... Is this ended? I want to change more."