Tribade rules put a woman’s sexual endurance, labias, and clit size to the test. 2 women compete over who’s vulva can withstand the most rubbing & penetration. Orgasms don’t matter, instead it’s about who can endure the most pussy to pussy contact. There may be over time until the loser finally says she vies up/taps out and admits who the better woman is, this is the only way to end the sexfight. The winner can finish herself off with her own orgasm.