amazon position
A female-dominant sex position in which the woman rides her partner while their legs are folded back against their chest, or spread wide with their feet in the air. In either case, her partner's thighs are in front of her rather than behind. Also known as a reverse piledriver. The name stipulated that it originated from the mythical Amazon warrior tribe, in which the position is used simply for reproduction purposes.
A skilled woman in this position can emulate the pelvic thrusting motion typical of a male partner, giving a near-complete feeling of role reversal. It is a typical position in femdom or BDSM fetish if the partner is bound or in amazon position against their will.