"But how would you turn me into one of your kind?" Monica asked.
"Good question." Arther said. "You see, my father was once a human, just like you. He got turned into a merman with the use of magic from a mermaid. Luckily, my mother taught me that spell."
"Woah, that sounds so cool. How do you perform that spell?"
"From what mom told me, a merperson only needs to hug a human while thinking of the transformation spell in their head."
Monica looked at her body before looking back at Arthur's. "Oh, that's all? You'd think there'd be a lot more humans turning into merfolk."
Arthur nodded. "Yeah but it wasn't too long ago that my father's human kingdom and my mother's merkingdom were in war with each other." The merprince said. "However, my dad became a merman to make peace with the merpeople and to later marry my mom."
Monica put a hand on her chest. "Oh, that sounds so romantic!" The maid quickly came up to Arthur and hugged him. "I really want to be with you, Arthur! It'd be an honor to carry on the tradition of peace."
Arthur smiled and returned the hug. "Me too, Monica. Now, let's begin your change."
The merprince held the maid close as the ocean began to glow.
Monica felt a tingling sensation going through her legs. She looks down and sees her legs eagerly fusing together.
Her toes wiggled for a bit before stretching out into two tailfins.
Monica then felt scales appear on her fused legs. At first, only a few scales appeared but soon fish scales spread all across her lower body. The scales even covered up her vagina, tucking it away safely under layers of skin and scales.
Soon enough, her bones were melded by magic to become more suitable for a single limb. In less than a few minutes, her lower body resembled nothing of her human legs but instead a fish tail.
Monica felt the sides of her belly itch and scratched until she felt the gills that grew on the sides of her torso.
When Arthur finally let go, Monica looked down to see her that breasts grew to a C-cup and were covered by seashells.
Monica looked at her new body in awe. She was no longer just a maid, she was a mermaid!
Arthur was amazed at what became of the farming maid he met just a few moments ago. "Monica, you look so… Beautiful."