Marshall Brain's Blog

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Teen Girls Leading Sexual Revolution: "According to the study, the percentage of young girls who participate in premarital sex jumped from 12 to 79 percent, while the percentage of young men who participate in premarital sex jumped from 42 to 71 percent. The average age teenage girls had sexual intercourse in 1999 was 15, according to the study. The average age during the 1950s and 1960s was 19. Overall, the percentage of sexually-actively teenage girls in 1999 was 50 percent, compared to 13 percent in 1943."