Cassie lay on her back and licked up at Samantha's pussy. At the same time Rebecca's tongue was diving into her to taste her most intimate areas and she shuddered with the pleasure of it. She had what had to be her fourth orgasm of the night while above her Samantha squealed, ribbited, and drenched Cassie's face with from juices that she eagerly lapped up. However her body remained stubbornly human.
"Damn it," said Jen from across the room.
"Yeah," said Sam as she panted through her afterglow. "Looks like it's official. We need Kyle to change you two."
"Ugh," said Rebecca. "My tongue's sore and yet I'm still horny." She hopped to the door and opened it. "Someone with hands bring the tablet and the wet-suit. Let's go find Kyle."
They made their way to the pool in a strange procession of two frog girls and two very naked human girls. Even then what they saw at the pool shocked them.
Kyle and Crystal were both naked and embracing each other, but besides the fact that Crystal was looking better than she ever had was the fact that she was now a fish from the waist down, not to mention her webbed hands and dorsal fin.
"What the hell?" said Cassie, "Crystal?"
"How?" said Rebecca. "We had the tablet the whole time."
Crystal pulled away from her kiss with Kyle and smiled at them. "I didn't really need the tablet. It's a long story but I was always half mermaid, Kyle just gave me the other half somehow."
"Listen," said Jen, "we need to borrow Kyle. It turns out he's the only one that can turn us into frog-girls. We're not going to be the only humans in this house, dang it." She took a swig from the wine bottle that she'd brought with her.
"I don't mind," said Kyle. "If you brought the wet suit and tablet?"
"One moment," said Crystal. She pointed up and all the others looked up to see the full moon above them. "You might have another option. I could never find a mermaid to help me out before, but it's said that if a woman has sex with a mermaid under the light of a full moon then they become mermaids as well."
"Hmm..." said Jen.