[s6e10] There's The Rub: Part 2 File

Feeling adventurous, they sneak out of the spa to a local restaurant. Emily is flattered when a stranger asks her to dance, but the experience leaves her feeling guilty and resentful toward Lorelai for "pushing" her. They eventually make up by stealing bathrobes from the spa.

This episode marks the first appearance of the "Vicious Trollop" lipstick, which became a fan-favorite recurring joke. [S6E10] There's the Rub: Part 2

Emily tricks Lorelai into a weekend at a health spa by pretending she doesn't like them, only to reveal it’s a mother-daughter trip. Initially, Lorelai is petulant, but the two eventually bond over martinis, steak, and a shared "vicious trollop" lipstick. Feeling adventurous, they sneak out of the spa