the ultimate taboo

Two identical twins having sex with each other.

Wow, looks at those twins getting it on, that's the ultimate taboo.

by Daniel Tosh Perv November 26, 2013

Ultimate Taboo

When identical twins have sex with each other.

I walked in on Easton & Aden (twins) trying to surprise them when I found the two having sex with each other, they were committing the ultimate taboo.

by DonatelloTheLuvBird March 28, 2014