stirring vanilla

When a man has sex with his partner who has very recently had sex with someone else.

Example:

Friend 1: Your wife was cheating on you?
Friend 2: Worse, I found out later that one time she had sex with her boss at work and then came home and we had sex.
Friend 1: Dude! You were stirring vanilla!

by ryeprotagonist October 03, 2013