Finding a mysterious hourglass within a junk-shop, I ended up bringing it home but found out it does something amazing! Whenever sand pours through this thing, my breasts and butt grow bigger and bigger! Now, if you'll excuse me, I need to put this to good use.
Hourglass (of) Expansion
NSFW, ButtExpansion, BreastExpansion, Destruction, Cute, FirstPersonNarration