>>50512136Their vaginas are much more complex than a human's. Due to their home world being only illuminated by moonlight their ancestors formed small social groups at high risk for low genetic variety. This led to the preference for mates from distant tribes that were genetically different. These rare encounters led to a sexual selection preference for long copulation times and complex vaginas. Their vaginas have 10 times as many nerve endings and 3 times as many muscles as that as a human's. They are so intricate that they have a pseudo sub brain that works independently. Females have high fertility rates and copulation can last hours. Their modern society controls population due to high rates of fertility. Young females at peak fertility are used as government incentives for genetically diverse males from distant lands and worlds. Males have longer and thinner penis that can be kept erect by a vagina for hours. For human males sex can be dangerous if precautions are not taken to stay hydrated and conscious during the hours long copulation.
