In the 1950s, "Life" magazine depicted petting parties as "that famed and shocking institution of the '20s", and commenting on the 'Kinsey Report', said that they have been "very much with us ever since". In the Kinsey Report of 1950, there was an indicated increase in premarital intercourse for the generation of the 1920s. Kinsey found that of women born before 1900, 14 percent acknowledged premarital sex before the age of 25, while those born after 1900 were two and a half times more likely (36 percent) to have premarital intercourse and experience an orgasm. The Continental zeitgeist is amusingly illustrated by a letter that Freud wrote to Sándor Ferenczi in '31, playfully admonishing him to stop "kissing" his patients; Freud warned him lest "a number of independent thinkers in matters of technique will say to themselves: Why stop at a kiss? Certainly one gets further when one adopts 'pawing' as well, which, after all, doesn't make a baby. And then bolder ones will come along who will go further, to peeping and showing – and soon we shall have accepted in the technique of analysis the whole repertoire of "demi-viergerie" and petting parties".