Prompt

Chae-min winces, looking overstuffed, as the water level in the IV bag slowly decreases in height, we see her stomach begin to fill with water very slowly. She is experiencing extreme pressure play. Her legs are restrained and cannot move, but she clenches her whole body and curls her toes as the water level reaches the the bottom of the bag, when her stomach is extremely full. and she has an expression mixing nausea, constipation, and extreme arousal, as she blushes hard. There are no leaks. No flowing water. Only her belly changes geometry. Her ass, pussy, and thighs do not change shape. Only the partially hidden underside of her belly increases in size proportionally to the water decreasing in height. She looks like she is going through a heavy pregnancy.