by powergannon July 22, 2010
When twin brother and sister have sex with each other. Something fans of Rosiel/Alexiel pairings from Angel Sanctuary write about in fanfics.
by Michael & Michele September 7, 2005
by Dylaoptupus February 6, 2010
by death by a spoon January 26, 2010
“I enjoy twincest porn.”
“My little brother and sister engage in twincest and I like to watch through the keyhole while I bop the ole’ chode.”
“Jaimie and Cersei Lanister on Game of Thrones have a twincestuous relationship.”
“Twincest is wincest.”
“My little brother and sister engage in twincest and I like to watch through the keyhole while I bop the ole’ chode.”
“Jaimie and Cersei Lanister on Game of Thrones have a twincestuous relationship.”
“Twincest is wincest.”
by Resicoi July 6, 2019
Incest between twins, also known as "twincest", is a subclass of sibling incest and includes both heterosexual and homosexual relationships. While in modern Western European culture, such behaviour is considered taboo and is quite rare, incest between twins is a common feature in Indo-European, Indonesian and Oceanian mythology, and there are a few societies in which the prohibition on it is limited or it is partially accepted.
by ChocoMonster August 26, 2012
by letthegoodtimesroll June 15, 2010