Drew could feel the change begin the moment he hit the water as his legs drawing together. He struggled under the water, unfamiliar with this contraint to his movement. Then he felt Kendra's arms around his chest and her tail around his legs, holding him in a comforting underwater embrace. He felt the strangest sensations in his legs and feet as he sank to the both with Kendra. He felt his lungs start to burn with the need to breath then suddenly he was breathing underwater and was able to relax. Finally the sensations in his legs ended. He gave a tenious kick with his "legs" and they have an awkard kick.
Feeling Drew's legs move as a single appendange, Kendra gave him a kiss on the cheek for good luck and released him. She watched has he made a serious of jerky movements, trying to adjust to having a fishtail.
Drew moved his way slowly around the pool trying to adjust to being a merman. He got a look at his new tail, a dark shade of blue but otherwise simliar to Kendra's purple tail. Kendra swam by slowly, making deliberate movements with her tail. Drew tried to copy them and after several attempts started to get the hang of it.
Drew smiled at his success and Kendra congratulated him with a deep underwater kiss. Drew felt a familiar stirring in his groin. When he had gotten a good look at his new tail, things were not as obvious as before; he suspected his manhood was simply retracted into his new tail until it was needed. But while Drew's urges were willing, his body was not; his first lovemaking session with Kendra was not much earlier and trying to swim with a tail for the first time had been tiring. He jestured to the surface then kicked off to the surface.
Drew's head popped out of the water followed a moment later by Kendra's.
"So I guess I really have no choice but to keep your secret now?" Drew said with a smile.
"Yeah, but I think my threat yesterday to drown you is now kind of empty" replied Kendra.
"I'm pretty exhausted from all this. Lets get out of the pool."
"Okay."
Drew pulled himself out of the pool with some difficult; Kendra with a little more ease. They wrapped their arms around each other and entwined their tails, silently enjoying each others company and their shared condition as mers.
"I guess this complicates that conversation I was going to have with my mom this evening. 'Mom, I turn into a mermaid every day. And this is Drew, who I stayed with last night. Not like that...well, until today, when I turned him into a merman.'"
"You should probably still talk to her anyway."
"Yeah, I'm just worried it will go wrong."
"If it does then we'll try explaining things to my parents."