incestating

The act of dating your sibling.

Mom: Where are you and your brother going?
Mary Sue: Billy Bob and I are going incestating!
Billy Bob: I'm gonna' get me some of that good sister lovin'.
Dad: Billy Bob, you know I shoot at anyone who tries to date yur sister, but since you are my boy I guess I'll let it slide tonight.
Mom: Have a good time and practice safe sex you silly kids.
Dad (to Mom): Come on and watch TV with me, it's our favorite show, "All in the Family".

by The Evil Minister July 16, 2008

incesting

committing incest on a regular basis.

having sex with your mom on a regular basis would be considered incesting

by Baybee Becky October 20, 2008

Incest

Having sex with members of ones own family.

Incest, the game the whole family can play.

by JJ July 30, 2003

Incestion

Getting your own mother pregnant, then getting that daughter/sister pregnant. Therefore, it's a sister within a sister. Inception + Incest = Incestion

Woah, you got your mom pregnant? Then that child? INCESTION!

by Lily69 June 13, 2012

incestment

When a girl fucks her dad on the regular in exchange for money and cars

Bro i here that chick gets HUGE incestment form her dad.

WHOA NO WAY DUDE.

by toxic cowZ May 26, 2018

Incestable

A blood relative with enough beauty to warrant serious contemplation of sexual relations.

I haven't seen my cousin Jessica since we were kids...fuck me running - she's incestable!

by Alison Chaynes May 22, 2009

Incest

SWEET HOME ALABAMA

Oh boy I can’t wait to incest my sister

by Holynevil December 18, 2018