According to scientists, "woman on top" is the riskiest sex position. Although it may have freed women from the shackles of the "Missionary Position," it appears that men are suffering as a result of the revolution in the bedroom. According to a recent academic study, the most hazardous sex position is "woman on top," Scientists have discovered that the "cowgirl" position is to blame for 50% of all penile fractures in the bedroom.