Courtesy of SexInfo101.com.
This position has the receiver lay on their back with their lower back and legs raised all the way up so that their ankles are either side of (and beyond) their own head. The exact end position will depend on the flexibility of the receiver. This position totally exposes the groin area to the giving partner who stands astride the receiver's groin to perform. The giver moves up and down on the receiver to create friction. The giver is also able to use their hands to caress and explore their partner's lower body.