My favorite underwear is made by Barely There. They are comfortable, light, and havce good coverage. I am not pulling them out of my butt constantly. Calvin Klein makes similar ones which I buy when they are on sale. To see the style go to:
http://www.barelythere.com/detail.js...mit=10&id=2426
As for boy shorts, They look good on, but I think they are so uncomfortable. They go in cracks and hurt in my opinion. As for thongs, only for seduction purposes or photos for the exhibition section. And that is my 2 cents...