NARS Sexy Time is a very warm-toned, medium gold with a sparkle finish. It is a permanent lipgloss that retails for $26.00 and contains 0.18 oz.
NARS Sexy Time Lip Gloss ($26.00 for 0.18 oz.) has a translucent, orange-gold base with flecks of copper and gold sparkle. It had sheer color coverage, which was actually as expected based on the description of the formula, that had good dispersikon of the sparkle/shimmer on my lips for even "coverage." The consistency was lightweight, thin enough that I could feel some of the grit from the sparkles coming through--if you're particularly sensitive to that, I'd opt out--but did not find it uncomfortable. It lasted for just over three and a half hours on me and was lightly moisturizing over time.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.