Complex sentence: Historically, and in modern times, female virginity has been regarded as more significant than male virginity; the perception that sexual prowess as fundamental to masculinity has lowered the expectation of male virginity without lowering the social status.
Split into simpler sentences: Historically, and in modern times, female virginity has been regarded as more significant than male virginity. The perception that sexual prowess as fundamental to masculinity has lowered the expectation of male virginity without lowering the social status.