As the two of you walk closer to the Mermaids you slip and fall with a thud onto your chest. It is now that you have grown alsmost half your normal height. Then looking at your friend you see a green rope-like tail shoot out of her rear. Trying yo stand up you find your legs are small short and completely weakened to the point that you can barely move.
A Wave washes over you and pulls you into the sea. Gasping your friend grabs your arm and the moon rises letting you see your new tail much more clearly. Now your feet are the only part of your legs that are still there and they ar flatening into a paif of fins. Your new pectoral Fin on the end of your tail thrashes in the water as your friend pullson your arm.
Looking at her you see...