As Nikka saw the Pearl Necklace in the clam shell, her wet body shivered as if she were about to achieve her first orgasm. Quickly taking off her two piece Bikini she moved closer to the Pearl Necklace. She bends over and places the necklace on her. In an instant her breasts grew from the B-Cup size to a healthy Double-D. The clam shell grew too started to grow until it dwarfed Nikka. Surprised by the growth of the shell, Nikka then heard in her head a voice saying "Enter me!". The freckles on her forearms changed from the dark colors they were to a golden iridescent scaling.
Nikka watched in surprise as her hair grew longer and her virginal vagina began to spasm and merge with her anus. "Enter me, and finish your transformation into a mermaid in blissful enjoyment!" Nikka heard again in her head. Nikka quickly came to the conclusion that the clam shell is talking to her. When she realized that she was becoming a mermaid, she without hesitation stepped in the clam shell and layer down in the clam's juicy interior and entered into a state of bliss as the shell closed over Nikka.
The clam shell quickly went to the bottom of the water as an interior light shone letting anyone in the water see the bones in Nikka's legs and hips disappear and the muscle tissues and skin merge into one mass, her feet perfectly becoming a fin and then the mass feeling a new set of organs, bones and her gills fully form. The clam shell opened up revealing Nikka as a mermaid. When Nikka awoke she looked at herself in a reflective surface. A series of golden iridescent scales covered her breasts like a bra and her tail and fins were an iridescent gold as well. The Pearl Necklace staying in place. "This is beautiful, I'm a mermaid!" Nikka said to herself.