>The Stonebreakers
Stonebreakers are amazon warrior women and Futanari supremacists, they seek to reform the Rebis by dominating ordinary men and women alike, a position that has not made them very popular among their peers but other Futanari still begrudgingly respect the potence of their Lingams with which they call on the strength of the bull. Unlike other Sisterhoods, the Stonebreakers have an odd sense of masculine pride and while they'll force men into their harems they refuse to bear their children, it seems this stance is starting to backfire as their refusal to be impregnated by men is rumoured to be diluting their Lingam, and few Stonebreaker Maidens proudly display their genitals as their ancestors once did.
>The Daughters of Depravity
Hedonists and Nihilists, the Daughters of Depravity reject the Rebis and most of the traditions of the Futanari, any Daughter can claim the title of Mother or Crone and face no objection. They are the only Sisterhood where the infertile outnumber the fertile, and while other Futas will dismiss it as a product of their hedonistic shortsightedness the Daughters are all too eager to claim it's quite the opposite. The way they tell it is that the Daughters of Depravity were founded by infertile Futanari who were sick of being mistreated by their native Sisterhoods and turned to deviancy. The Daughters of Depravity wear their pariah status as a badge of honour, with no expectation to reproduce or reform Rebis they see themselves as truly free, and by experimenting with the Lingam and Yoni in ways most Futanari would baulk at they've discovered many strange and unique magics.