incest

When the family gets bored and decides to "experiment around" with one another.

My mommie and daddie are brother and sister so i have 13 toes.

by me December 24, 2003

incest

Incest is taboo but extremely aroused. It's easy for people to cum while masturbating with porn but it becomes terribly easy while you think you were fucking your family members (son & mom, dad & daughter, brother & sister). But the best incestous scenario is fuck both your mom and sis.

He fucked his sister in her ass and then put his penis into his mom's mouth. They're such incest family.

by thanh March 10, 2007

incest

Incest is when your willy gets hard when you see your sister naked.

I saw my sister undressing, and got a boner, does that mean we did incest?

by bundlebaby January 10, 2007

Incest

Keeping awesomness within the family.

Timmy: I'm so glad my family practices incest, as our awesomness never leaves us!

by Jakuviousasdf September 2, 2010

Incest

When two or more people from the same family have sexual relations with eachother. This is considered wrong. If you have a baby from this is could be deformed or inbred

Ex. Mom and my brother commited incest while my dad was out of town, i might get a baby sister soon..

by Loganpaulcansuckit July 10, 2017

incestation

When more than two relatives are romantically involved, it's an incestation.

Incestation
"Dude, I'm totally tappingmy cousin."
"I know it, man. Did you forget we're conjoined twins? I'm hitting that, too."
Incest

by Bookworm434 April 18, 2015

Incest

Sex with own family AND TWINS :)

liza and jack had sex and it was incest

by Yeejakeissopimp July 12, 2008