As Samantha squirms against the ropes that tightly bind her to the chair in which she sits and more ropes that lift, bind and squeeze her big round tits, the knot in the crotch rope that runs between her pussy lips presses on her clitoris. As Samantha squirms, that knot stimulates her clitoris and the cords rub between her inner pussy lips. Her skirt has been hiked up to fully expose her shaved bare pussy so we can see all this happening.