Your parents having sex.
Your parents as Billy Joel and Christie Brinkley as they appeared in the ‘83 video for "Uptown Girl."
Christian Bale in "American Psycho."
The "Sunrise, Sunset" reprise in "Fiddler on the Roof."
The second "Sex and the City" movie.
Other, hotter people you've had sex with.
What bizarre thoughts have ruined the moment for you?