New Piston Cowgirl Position

She wiggles her ass sexily and rubs her crotch against it to get her dick erect. Then she sucks his dick, and when it is erect enough, she slides it into his pussy, which opens its mouth. She does not lean her body against the man and does not make contact with any part of his body, but only her dick and pussy are connected at a single point, and the piston is slippery.