Might be weird but edit it if it acts weird :) Your are a latex beast or whatever.

A white goop was crawling through a vent before slipping through the cover of the vent. It drops into a puddle of light latex, after a moment, he emerged as his body forms. he was now on all fours, his big, voluptuous thighs and large butt jiggling slightly as he came out. he shook his head slightly, getting some of the latex off. He sighs.

Mm... Never went to this area before....