We've all done it. Sex with an ex.
Usually done after a night of heavy drinking. A follow up of the drunk-dial for a booty call.
"Can't get warts from her again. I am already carrying that virus. So we decided to have some ex-sex and now she won't leave me alone. I remember why I hated that stanky ho."
"Having a night of ex-sex can lead to a lifetime of hell."
when you have sex with your ex-girlfriend/boyfriend & you don't even like them.
guy 1. "dude I can't believe what you did last night!"
guy 2. "yeah man it was ex-sex, even tho I hate her."
guy 1. "stellar man."