1 definition by EveKnight75
Sexual activity between members of a step-family. Nowadays, it most often refers to a sexual relationship between step-siblings. However, it can also refer to a relationship between a step-parent and a step-child.
-The two of you aren't allowed to make out with each other! That's incest!
-Correction, STEPcest. Just because our parents are married doesn't mean we're related to each other.
-Yes you are!
-Not by blood! We're step-siblings. Emphasis on step.
-Correction, STEPcest. Just because our parents are married doesn't mean we're related to each other.
-Yes you are!
-Not by blood! We're step-siblings. Emphasis on step.
by EveKnight75 August 27, 2006