Twincest

When Twins are in love with one another and/ or like to perform sexuall activities together.

Benji and Joel are in alot of Twincest fics.

by Rhiannon December 08, 2003

TWINCEST

Twincest
Gives new meaning to fo fuck yourself.

TWINCEST example: Hikaru Hitachiin and Kaoru Hitachiin
(if you dont know who they are, LOOK THEM UP)

by ASIAN >.< Wu-Dawgg May 08, 2010

Twincest

Incest between any set of multiple birth siblings. Twincest can occur between twins, triplets, octuplets, etc. Twincest may also occur across gender lines (sisters, brothers, or both). Twincest can be any level of sexual intimacy.

The Visconti triplets practice twincest in homosexual pornography.

by T-Winner July 10, 2009

Twincest

the hottest damn thing ever!

In The anime/manga series Ouran High School Host Club the Hitachiin twins(Kaoru and Hikaru) were called out on there twincest by Kirimi Nekozawa.

by sourxneonxgummixworms June 14, 2009

Twincest

The act of Incest between twins.

"I can't believe those twins are snogging! That is blatant twincest"

by Joey Masters December 07, 2007

Twincest

A form of incest between twins. Twins having sexual relations.

There is often fanfic involving twins such as Fred and George Weasley having sex.

"I just read this really odd fanfiction that involved a lot of twincest!"

by epsilina August 02, 2007

Twincest

Stuff you say "woah, that's sexy" to.

Woah, that twincest is sexy.

by Kat-chan February 01, 2008