Translations:Codex: Nukas/15/en

Fertilization can take place for up to a week after laying. The male nuka will take their partner’s egg and insert it into their own genital slit, for male nukas lack the visible penis or testicles found on other races. Instead, they have a larger, somewhat meatier clitoris that can grow up two two inches long and almost as wide. This clitoris will release its sperm in the form of a clitoral foam released by the act of penetration. Nukae eggshells are highly permeable to this moisture, and are almost always fertilized when used this way. For this reason, ‘accidents’ are unheard of in their culture.