Mistress has mentioned before that there should be standards in SL about clothes and prims and such. If there were i would be having this problem:
There are *no* panties in SL that don't peek over the tops of most of the pants i have in my inventory. i just bought 2 new pairs - cut so low that they are almost more off than on - and still they show.
i even sent a group IM to Fashion Emergency and no one replied. No one. Thanks a lot everyone. For NOTHING!
The best thing to do at this point i suppose is just to try to dress as modestly as possible with that limitation in mind. Tops that are tucked in or high cut pants perhaps.