In a number of ways. For example, a "good" Victorian wife wasn't supposed to enjoy sex and it was recommended that sex should be limited to twice a year. Also there were horrible contraptions designed to prohibit sex. One was a sort of collar with inward facing spikes meant to be worn around a man's penis for the purpose of prohibiting masturbation or even nocturnal erections. Since sex was never talked about, men and women would often have no idea how sex even worked!