It takes Veruca's tongue and The Bunny Fucker to really win Bianca and once that seal is broke, it's that perfect moment of transformation from meh orgasms of her previous life, to rocket-ship-never-the-same-again orgasms of her new self.
And Veruca balances her hot girl duties between fucking Bianca and getting drilled by machines herself. The girls fuck like their personalities too - Veruca is compact and energetic and she likes the short stroke machines like the Fucksall and The Satisfyher, while Bianca who long and towers over Veruca, loves the long stroke Bunny Fucker and the deep penetration of the full 4 inch stroke.
Both girls forget we are even in the room as they seek out cum space over and over again.