Top Definition
twins having sex.. its so wrong, yet it feels so right
me and my twin have twincest. i fuck my twin, and enjoy it.
by nadia_aidian February 28, 2004
When twins are in lust/love with eachother.
by Anonymous September 14, 2003
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
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.
#anime #yaoi #manga #kawaii #yuri
by sourxneonxgummixworms June 14, 2009
incest between twins.
twins who have a sexual relationship
Benji madden + joel madden = yummy twincest
by squee February 19, 2005
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)
#tiwncest #incest #twincset #twins #sex #love
by ASIAN >.< Wu-Dawgg May 07, 2010
Incest between twins. In the world of fanfiction, this is both a frequent and yummy occurance that we, as human beings, should be eternally grateful for. <3
Hizashi/Hiashi is mad twincest. <3
#incest #twins #hiashi #hizashi #hizahia #hiahiza #hyuugacest #fanfiction
by Louey March 23, 2007
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