You may already have experienced multiple orgasms. Surprising as this may sound, many men are multi-orgasmic before they enter adolescence and begin to ejaculate. Kinsey’s research suggested that more than half of all preadolescent boys were able to reach a second orgasm within a short period of time and nearly a third were able to achieve five or more orgasms one after the other. This led Kinsey to argue that "climax is clearly possible without ejaculation."