Twinsest

When two twins decide to have intercourse together. It also complied with triplets, quadruplets, etc.

Person 1: Do you see those red neck Twins?
Person 2: Oh yeah they Twinsest.

by cici69 October 25, 2018

twinsest

like insest. but with twins

i always thought you two twins were too close. IT'S TWINSEST

by Lexxx March 23, 2007