To wonder if it's impossible to have a flat stomach?

[moutonfou]

I'm 9st, BMI 20, never weighed more. I exercise 5 times a week (running/yoga). I still have a little roll of tummy that I can pick up and spills over my pants when I bend/sit down and shows through tight exercise tops.

I have a friend who is a professional dancer and probably as fit as they come, and noticed that even she has one.

Is it just something women have unless they seriously dedicate themselves to strength training and maintaining a very low body fat percentage (which I am not in the market to start doing!) Or is there something I can do to tone/reduce it?

It's just different body shapes.
My stomach is naturally flat and I have a really long, skinny torso (even when I gain weight my torso remains pretty bony), but I have a big arse and huge thighs. I have that thing where there's a big long pad of fat on the outer thigh. Any weight I gain goes straight to lower body.

Mine is very flat at the moment - I haven't eaten for over a week though (due to stress) and am pretty unhealthy.

My BMI is around 18.5 now - as soon as I put a few pounds on, it's the first place I gain weight. I have a long body - my legs/arse aren't particularly thin.