Janine's still hadn't come up for air, but the waves of pleasure from what she was doing with her lips and tongue were sending waves of pleasure through Tim's body. Still, the feeling in his legs concerned him.
"This wont turn me into a merman, will it?" Tim asked Cleo.
"Don't be silly" replied Cleo "there are no mermen. But one good turn deserves another..."
It took Tim a few moments to realize what Cleo meant.
"But I don't..."
Tim couldn't finish his sentence as he orgasmed. Janine kept going. She pumped him dry as his legs began to feel stranger, like they had fallen asleep. Tim put his hands on Janine's head, but before he could push her away another orgasm hit. Tim couldn't think anymore; the pleasure sweeping his body was too much. His penis strank from its erection then kept going, slowly being absorbed into his body. Janine chased it with her tongue until there was no nub left. Then she thrust her tongue into Tim's new slit. Tim was beyond caring, lost in the ecstasy. He absentmindedly ran his hands through Janine's long hair. He became vaguely aware that Janine's body was no longer between his legs, but on his tail. His chest felt strange and his hands wandered from Janine's head to his own chest where he found new mounds of sensitive flesh.
With a final thrust of her tongue into Tim the new mermaid felt her first full female orgasm. The former Tim slid to the bottom of the pool where a delighted Janine held her mermaid lover in her arms, pleased with the thought that Tim would never again try to cheat on her with another mermaid.