My fantasy would probably be were a diver in a dark blue drysuit swims underwater. She is unaware of the hose in the back of her suit, till it starts pumping water into it.
She notices this when her legs start buldging out and dragging her down.
Panicking, she starts swimming/walking to the surface; water reaching her upper half and arms.
Once she's on land, she finds it harder to move as her suit is weighing her down, and looking more like a gigantic water balloon. Her limbs inflating with the rest of her suit, leaving her head in an wobbling mass of blue.
The suit gets bigger, and starts to get rounder. The girl inside is panicked even more when it starts absorbing her limbs and taking in her head.
The rubber squeaks as it's stretched out, breaking limits as is. Water starting to leak out the sleeves and leg holes, even the neck hole.
The suit, now a humongous water balloon with only her head sticking out of it, audibly creaks, taking in her head till it disappears into the suit completely.
Wide shot of the suit trembling and creaking as water fills it still. Leaking out the opening audibly reaching it's breaking point tilll......
SPLARSH!!!!!
Water flies across the sand with pieces of dark blue rubber, leaving a very naked girl laying on her front in a daze.
THE END