What causes the “fat bottomed girl” phenomenon?

This was briefly discussed in the “Women who pretend to be thin online” thread.

Ok, I’ve only seen this 3 times in my life and it’s always been a female. Basically the girl has a perfectly normal/slender looking body above the waist. However the the ass & thighs are just HUGE. I mean, it’s almost comically big, like they’re wearing the lower half of a fat suit. I’m genuinely curious, how does this happen?

If it matters, all 3 girls I’ve seen like this were white and aged 20~25.

AFAIK – luck of the draw. That’s just where they store the fat. By the way – I have seen a couple of guys like that too.

AFAIK it’s just one of those variations you get. Women come in a few basic frame shapes: ruler, apple, pear, hourglass. A few pear-shaped women may gain weight disproportionately–it’s natural to gain in your hips and thighs anyway, so it’s just sort of one of those things that happens to a few.

My friend’s mom is like this. It’s easy to see that she started out a beanpole, had 4 or 5 kids, gained weight in later life, and wound up oddly proportioned.

I had a friend like the OP describes. Waist up: normal size. Waist down: holy shit! As in nearly grotesquely huge. When she wore jeans, locals would stare at her ass in amazement (we were overseas), as it was truly a sight to behold. I could never figure out how she found jeans to fit her, as her waist had to be around 25" and her butt at least 50".

Does anybody else remember once on Full House when they had a fantasy sequence of them all in the future, and the woman had to sit on two chairs because she ended up one of those big-assed older women?

Uh, not that I watched Full House as a young’un.

People just put their fat in different places. Mine all goes between my waist and my knees - after I had that mid-20’s metabolism shift and before I started running, I was asked more than once when I was due.

Future Becky! And Future Jesse had to wear a rug.

It happens because it’s hot.

…well, not when the woman in question gets grotesquely huge.

But regular upper-half, large lower-half is astoundingly attractive, in this man’s view.

///Hey, I like big butts and I can’t deny…

I had a cousin like this, below the waist she was HUGE! She never had any kids, though. She wasn’t very active, either. I think the cause of her big bottom half was ice cream.

It’s how my mother’s family - including me, and some of my cousins - tends to distribute fat. We get guts, too, but…well, butt.

Yeah. My wife has the problem where her rear end is out of proportion. She doesn’t have a big butt, either. It’s just that she finds it difficult to find clothes that will fit her waist and still fit her bottom.

tacoloco, that’s cause women’s clothes now are made to accommodate larger stomachs. I am skinny and have only a 10-11" diff there, and it’s still hard to find stuff that doesn’t gape majorly in the waist.

Where your fat is stored is pretty much genetic. Of course, diet also has a lot to do with whether you will store a lot of fat, or not.

Fat bottomed girls
You make the rockin world go round

That’s a different thing. I’m a duckbutt, I have that problem and have had it since I was 12, and it’s worse in the US because designers there seem to believe that if you’ve got a 42" hip your waist must be in the 42" range (mine is about 30" now, it used to be 26-27"). My widest point isn’t the hip, but actually a bit below it.

But I still haven’t found enough eye bleach for that time I walked to work behind a woman who looked like someone had stuck the upper half of a manequin onto a 2-seater armless sofa. Horses have smaller asses. The thighs were large, but large in proportion to the buttocks, going down to still-large-in-proportion forelegs and to thin ankles and feet (as opposed to other obese people whose ankle bones are pretty much invisible).

I heard an account once of a disorder in which the fat on the lower part of the body is abnormal in such a way that is extremely painful and impossible to lose through dieting (which will only slenderize the top half of the body). Liposuction makes it worse somehow.

Googling, lipedema might be what I am remembering.

In the interest of equal time, a lot of guys look normal everywhere but their beer gut, also because that’s just where the fat goes with men.

Yeah, there’s a lot of guys, myself included, who have what I call the “Apu” shape - thin legs, thin arms and chest, but big round middle. Think of it also as one of those old fashioned oil lamps that are thin on the top and bottom but have that bulb shape in the middle.

That was my dad. I called it “spider shape.”