Thongs!

[MichiganHeadmaster]

I probably already made this same comment. They are sexy, but they take away from the fun of "peeling" away the layers of protection (not that panties afford much protection, but you know what I'm getting at). With a thong, your butt is already about as bare as it is gonna get.

That said, thongs CAN be useful if you want to give a bare bottom spanking to someone who is modest about showing anything else on camera.