"Dude, I just had the weirdest fever dream about a road trip and BBW porn—hey, what app is that?" "Oh, it's the FML app. Anyway, continue telling me about your dream." *a few days of moderation later…*

No wonder she's obese then.

But very often, women described as being "healthy" are often already BBWs. I guess your mother is just jealous.

Why would a usually male porn fetish have any effect on young women's level of activity and diet?

Is it pronounced niche? Or nitch? I have heard it said both way.

I could've sworn it meant "Big, Busty Women"

Ug - the ignorance on that one. I'd have just told her to stop talking.

what was her rationale? I'm honestly really curious.

I'm not sure how to feel about this, OP. Sure, it doesn't help the obesity issue. One might even say it promotes it. However, it issssss pretty hot...

If this were a real social base line construct, I'd figure we'd be swimming in busty redheads.