Also known as "four-sidedness," this position reveals a feminine submission, which should not be construed as a carte blanche to just happen penetration. It comprises a number of advantages that few positions offer: the facility for man to stimulate the clitoris, the anus and breasts of the girl, the variety of possible motions, the possibility of the woman stimulating the testicles of the man and the facility to alternate sex anal and vaginal. Let's say it's a full position, since it's well taken advantage of by the couple.
