The best experience I had at the store involved a young lady we nicknamed Red. She had red hair (duh), a slim figure, and was a stone cold fox. I watched her change every chance I could, but she never even took her bra off. (Not that see her perfect little panty-clad ass was boring or anything...) One night I confessed to my wife that I was dying to see whether Red shaved her pussy. My wife asked what I would give her if she could get Red to show her pussy in the changing room. I finally agreed to take my wife to Hawaii. This would be a big expense, but I figured, what were the odds that she would actually pull it off? Red had always worn panties before, so why would she suddenly "go commando", as we say nowadays?
Nothing happened for months, but then one spring morning I overheard my wife tell someone that we had just gotten a shipment of bathing suits. This got my attention, because we never carried bathing suits before and we never got "shipments" of anything, but bought everything ourselves at Goodwill (and then added a huge markup, haha). I knew it had to be Red, and saw what my wife was up to. Red poked around in the box of brand-new bathing suits (as I found out later) for a while, then picked one out and asked if she could try it on. My wife casually replied, "Sure, we can wash it." Genius! She was basically telling Red that it was OK to take her panties off.
Sure enough, Red came into the dressing room and got completely undressed. I am happy to report that she had pointy nipples and a full red bush.

She bought the bathing suit at a huge discount (little did she know). I had to max out my credit card, but I kept my promise to take the old lady to Hawaii. It tooks years to pay off. Whenever I complained, wifey pulled down the front of her pants a little bit and reminded me where my trouble came from.