A woman is in cowgirl position on top of a pillow with her crotch pressed against the…

A woman is in cowgirl position on top of a pillow with her crotch pressed against the pillow surface. She performs rapid hard "sliding" motions over the pillow while showing a subtle teasing expression with playful eyes and slightly bitten lower lip, she slams her hips and pelvis in fast aggressive strokes far forward and far backward across the entire pillow surface so her crotch travels a long distance, she rocks her pelvis hard. Her hips and pelvis execute powerful "rapid sliding" motions at a "fast intense rhythm", her belly contracts and ripples strongly with every long hard thrust forward and back, her crotch slams and glides energetically far forward and far backward, her upper thighs and legs flex and pump quickly and energetically driving the fast long-distance sliding, her feet press down hard and shift rapidly with the fast motion, her entire torso and shoulders bounce and sway in strong dynamic waves from shoulders to hips creating constant energetic motion.

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