This can only be done when your girlfriend is a babysitter. While she is at work, you go visit her and have sex in the homeowners bed. It is best pulled off when the man of the house walks in the room as you are putting on your shoes.
Friend 1- "Tyler was having sex with his girlfriend yesterday and pops almost caught them."
Friend 2-"At what point did he catch them?"
Friend 1-"Well they were done and he was just putting on his shoes.
Friend 2"Oh! Its all good. They were just going over French.