Doubletreeing It is the act of two people choosing to have sex in the window of a hotel in a high-traffic area specifically so people can watch. Originally termed for the Doubletree Manhattan where people frequently had sex in their hotel room window because of how easily people
on the street can see.
Recommended positions include doggie and straddling so that people can see the most
penetration. Maximum pleasure is taken when the couple sees another person
masturbating and watching them.