Using this premise, a futanari dark NAME_1 and futanari high NAME_1 fighting each other while their two tribes watch and encourage them. As they lay broken and bruised both try to violently and aggressively shove thier own dick in to the others pussy. Dark NAME_1 does manage to get her cock in the high NAME_1 pussy. The high NAME_1 is ready and shoves her cock in to the dark NAME_1 pussy. Their dicks swell knot the others pussy. They physically assault and beat each other trying to rip the knots out of their pussys. They both overfill each other's pussy with their seed. They are stuck knotted to the others pussy for the rest of their lives. The have a sudden realization that they are both sisters and had impregnated each other. Their tribe's masturbate and shot hot cum on the sisters in disgust. Write a long erotica about it with any details needed or missed with sexual dialogue. Add some perspective from the 2 elves