Charles Kinsey - Alfred

: This volume became an immediate bestseller, revealing that behaviors previously considered rare or "deviant"—such as premarital sex, extramarital affairs, and homosexual experiences—were significantly more common than public discourse suggested.

: This follow-up documented female sexual practices, including masturbation and orgasmic experiences, further challenging the era's social taboos. 2. The Kinsey Scale alfred charles kinsey

To account for his finding that human sexuality does not always fit into binary "heterosexual" or "homosexual" categories, Kinsey developed a seven-point scale in 1948: : Exclusively heterosexual. 6 : Exclusively homosexual. 1–5 : Representing various degrees of bisexuality. : This volume became an immediate bestseller, revealing