Sam finishes up drawing up sketches of your penis to be used for...later drawings naturally. She flips a few pages and starts penalizing in her sketchpad. "Let us see about that long eel tail of yours?" she asks of you as you focus your attention on your legs and spine.
Soon you feel your feel start to grow numb as your toes begin to fuse together followed by the cracks and pops from your spine as it begins to grow out. Starting at your tail bone, you feel it growing out into a hairless nub. It was thin and short at first but over the corse of a few minutes you feel it thicken as it slowly but stendly as brown scales grow in and a thin fin forms down the middle. It continues to grow, covering were your anus is or soon to be was as get grows out to be about 10 feet if you could fully extend yourself. You start wrapping your flexible tail into a coil as you try to keep it inside the pool as best as you can.
As this your tail was growing over your ass, butt cheeks deflats and smooths out as your anus reforms near your genital slit, becoming your fishy cloaca. Legs loss there mass as musules deform and bones painfully get reasorbed back into your body, as your feet look like a pair of fleshy blocks. you watch as best you can, wapking slime from your eyes from your bodies sweat glands finally make the shift to slime glands. your feel thinning out and forming fins near your waist band.
"that was incredible transformation, heck I should tip you for have slimy your making yourself, don't think I've seen you like this before?" she said as she outlines the tail part of the painting, as you begin to feel dehydrated from the slime production and being not fully mostrized by the kid sized pool.
"can I have a bit of break soon to freshen up and get some water?" you ask as light glizions off of your slimy body. "sure, this is a good place to pass anyway" she said as she lets puts down more towels to have you slider as best you can to the restroom giving you a large waterbattle to drink from as you give yourself a quick hot shower.
as you took your break sam was thinking of what next for you to change, or even do?