My Cum Makes Boobs Grow!!!

I'll keep this brief!

Inspired by a popular fetish comic along these lines, I want to run a scenario where aliens give a single young man (or futa woman) a special gift: now, this person's cum makes women's breasts, bellies, and asses grow depending on where the cum ends up.

Cum in a girl's mouth, their belly grows! Cum in their vagina, their breasts grow! Cum in their ass and, well, their ass grows!

What will the world make of this ability, or these girls walking around with unnaturally large chests, distended pregnancy-like bellies, and bubble butts? What will happen to the plucky protagonist with magical growth cum?

Let's find out together!