Xaotik Designs

Wikipedia calls a thong:

The thong or tanga is a garment worn as either an undergarment or as a swimsuit by both women and men. The style characterized by a thin strip of material along the center of the garment’s back designed to sit between the wearer’s buttocks, connected directly to the bottom front of the garment and to both sides of the front at the top via a waistband.

I just call it sexy.