Naughty Lady,
It's hard to describe. I don't like most lingeries, including the sexy and erotic ones, that I saw on the web and in the catalogs. The sexy ones are too showy and lack understatement. In other words, a little too vulgar. The normal ones will only evoke strong erotic feeling if it is worn by a girl that I know at a very intimate and personal level. In the latter case, all she needs to wear is a loose-fitting nightie, cotton or silk, which reveals her beautiful legs and a little of her chest. Because I already "know" the girl, imagination will do the rest of the work. But for a girl that I meet for the first time, it's tough. The girl can certainly wear something that fits her very well. But since the look of her clothing is most likely new to me, it will take me some time to get used to it. That essentially adds a separate (mental) barrier between my senses and the girl herself.
Since my post, I've found a couple of nice items. If you are interested, I can PM you with the links so that you get an idea.