Blair violates college etiquette by ignoring the socked door handle to her dorm room and gets a nasty (literal) surprise: its Dan and Georginas G-rated dry humping. He tries to head out and Georgina (who makes a terrible sex kitten, BTW) paws at him while making a laundry list of people who would approve of their, um, activities.
Because, you know, nothing says this relationship is solid quite...