An Incestuos lesbian. Two sisters that have sex.
Twins that have sex with eachother in a porn are incestbians.
από Amanda Ferguson 24 Σεπτέμβριος 2007
Two related females participating in sexual acts together.
Isn't that her sister? Yes, they are incestbians.
από Merideth Factsterburny 25 Οκτώβριος 2010