Side effects :-)

I see that low-on-the-hips pants are quite popular among the young ladies, often with a fairly long bare midriff. The allure of bare skin needs no explanation. The very low pants line combines the element of danger (near falloff) with an emphasised hip movement.

When the waistline is high, the straight line rests on a part of the body that is stable during walking. The outer edges of the hips shift up and down, so when the waistline is low it seesaws, drawing attention to the hips. In addition, the straight line of the waistband contrasts with the curve of the hips, and once again emphasises the hips.

And all's well, if the woman is wearing shorts. However, long pants are in style, and so is wearing the waistband very low. If the lady wants the pants to stay on, she has to cinch them tight.

The result is perhaps not quite what the wearer intends... If you pull tight, the waistband pulls in and the flesh bulges out above and below. Now the seesawing waistline draws attention to a new curve--a pudge on an otherwise svelte lady.