For me, it depends on the setting. A lonely thong may be sexy at times… but not at the grocery store 🙂
As much as I hope this doesn’t sound like a cop out – it entirely depends on where you are and what connection you have to the people around you. That said, as a personal preference I tend to have more fantasies about women dressed in “more” then “less”. It gives me a chance to peel more away once we are alone!