I think that generally back pockets are flattering, but it's the size and placement of the pocket that will make the butt look good or bad. for example, little pockets can make some butts look perky and rounder, but they won't do much for de-emphasizing. big pockets, vice versa, they can make you look slimmer. low placed pockets make my butt look flatter, and I think that any pockets with flaps are best on little butts.
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