Where do those big aureolas come from?

[suckseed]

I was just looking at Yasmine's pics and again got to wondering. How do you turn boynips into those nice pretty ones?

[suckseed]

Bump til someone tells me.
I'll take a guess. Skin stretches, so...boobs get bigger, aureolas can't help but follow?
Or...hormones?
??? C'mon, it ain't an 'am I gay' thread!

[tsntx]

both