Anthropomorphic

                 You wake up feeling great like you have had the best sleep in your life. You get dress and go meet two of your best friends over at a place you like to swim.  

                  As the three of you talk for while as each of you get in to your own swimsuit in front of each other each of you tell how the other looks in there new swimsuit and how hot  they will all turn the boys heads once they get some fun swimming with each other first. 

                  Sally pushes you into the water playfully but as you hit it your legs being to turn into long single fish tail up to your hips and pussy. Which now begins to drip with the sexual desire to fuck any one even Sally and Pam.

You let out a scream in horror not that it hurt but from the fact you now are a mermaid.

                  Pam and Sally run into the water to you and start to pull you out of the water as fast as they can when suddenly Sally lets out a braying sound.  As you all look at her while still beging pulled out of the water you watch her change into a sexy donkeygirl while next to her is Pam who is mooing as she is now a sexy cowgirl not the one who rides them but is riden by them instead.