To answer your inquiry Tania held up one of the child skinsuits. One of an 11 year old girl of Japanese origin as it happened of the normal 4.9 feet of not for the silver-scaled tail replacing almost everything below the waist (there were outlines on the back of a butt) ending with a wide Caudal fin. Chest was only slightly bigger than normal at B-cup. The only thing the skinsuit and Tania shared was the very-dark brown hair colour and even then the suit’s was halfway down the back compared to Tania shoulder.
Before you could ask more your girlfriend had briefly handed you the Skinsuit so she could strip down to naked, leaving you silent in how much it seemed she wanted this. Then once she was completely naked Tania reclaimed the skinsuit and opened it up to get inside and actually managed to get most of it on.
“Something the matter babe?” you asked as she briefly stopped. “Just noticing how starchy this thing is for skin” Tania answered in wonder. “By nasality in the event like now of someone taller than the outward design uses it” you assure “Just wait until it’s on completely”. “Of course” Tania accepted. At which point once the tail part was done she started shoving her arms down the Skinsuits before pulling the chest-part closed. Then finished by pulling the head over her own.
The moment that last part was done the seams of the suit started fading as the skinsuit shrunk back to it’s standard size only with Tania inside retaining the mass. But once that was done and the eyes of your skinsuited girlfriend opened she fell backwards, reminding you how these tails weren’t able to let users stand upright and you quickly rushing up to Tania.
“You alright Tania?” you asked as you helped her bend up a bit. Tania merely looking at you before answering: