Kendra and Patrick lay on the edge of the pool, exhausted by their aquatic lovemaking.
"That was everything I'd hoped it would be" said Patrick.
"That was the first time I've had sex as a mermaid" admitted Kendra.
"You seemed to have a good idea what you were doing."
"It wasn't long after I started transforming that I thought about the implications of being a mermaid."
"You ever wonder what it would be like with a merman?"
"Eaiser" she said with a laugh. "It's a bit difficult to brace two people underwater with one tail, as we just found out."
After a moment Kendra added "Why do you ask?"
"Because I think your condition may be contagious."
"What?!" said Kendra, bolting upright.
Sure enough, dark blue scales were spreading across Patrick's legs.
"You're becoming a merman!"
"Sure looks that way."
"Good thing you have a..."
Kendra's words trailed off as she started to realize something about Patrick. An orphan, like her. Found her in the school pool. Not surprised or scared at the discovery of her as a mermaid. Has a swimming pool filled with saltwater. Said he always wanted to have sex with a mermaid. Maybe it was all just a coincidence. Was Patrick trying to find a mermaid and become a merman? Or was he one already and the post-sex transformation was just an act. But if he was already a merman, why did he transform as soon as he hit the pool?
"Yes, it is a good thing I have a pool" said Patrick. "Looks like the transformation is complete."
Kendra looked over Patrick's new tail - essentially like hers, but bigger and dark blue instead of purple.
"Patrick, tell me the truth. The whole truth. About you."
"What do you mean?"
"You know what I mean. There's more to you and mermaids than you've told me, isnt there?"