A character not known for their sexual prowess comes into work/school/library/other location in a great mood, possibly dancing, singing, maybe some skipping or depending on the character even a pelvic thrust or a Freudian Slip, with a broad grin on their face. Other characters comment how "you're in a good mood" and then somebody asks "you had sex, didn't you?" (Alternatively, they'll go through the Did You Get a New Haircut? routine.) Examples of Did You Just Have Sex? include: