What I find complete turn-on is to be half-dressed during sex. Wearing lingerie or just a tight mini skirt and see-through tank top or similar is very erotic. What is hidden, imagined and just suggested to the man can make him very, very aroused. It is like it is elicit and urgent and we don't have to time to completely undress. I also enjoy sex when I man is semi-dressed, or he only has time to unbutton the fly of his suit trousers. I feel sexy and he appears more dominant and authoritarian in clothing.