May be never. Women masturbate less or never.
Women have responsive sexual desire. They dont have sex drive. They get horny but their horniness means desire to orgasm, it’s not desire to have sex with men, craving for men body is totally absent in their horniness. It’s asexual horniness. They are just horny without any sex desire.
Or, this innate feelings totally absent in their mind + brain until they already in a sexual moment with another person, like if their husband touch them, kiss them.