The sexual habit of these perverted women is to stimulate their sensitive spots while writhing their soft bodies, and as they climax, they arch their backs! The intensity of the electric massager, the speed of the rotor, the delicacy of the fingers... the more they feel it, the more they arch their backs and writhe like shrimp washed up on land! They can't stop but they reach a ferocious, unstoppable, arching orgasm!