I'm a buy them because I want to girl, so I will just go shopping for the heck of it...I'm now getting to the point where I've got 3 drawers full of bras and panties. It just makes you feel more sexy buying new stuff when you can, whether you need the new stuff now or not...
Like IAKG, I'm also big on getting them in sets if possible.

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Though dreams can be deceiving, like faces are to hearts; they serve for sweet relieving when fantasy and reality lie too far apart.-Fiona Apple