16 years old!
"Young, very young, too young," the now 50-year-old actor tells the mag.
But the sex-related talk doesn't stop there, as Clooney also recalls—TMI alert!—his first orgasm.
"I believe it was while climbing a rope when I was six or seven years old," he says. "I mean, nothing came out, but all the other elements were there. I remember getting to the top of the rope, hanging off the rope, and going, 'Oh, my God, this feels great!' "
Are you still with us? Well, then, you probably wouldn't mind hearing about Clooney's fondness for flatulence as well.
"It's one of the funniest things in the history of mankind," he insists. "Even the idea of a fart makes me laugh. Saying the word 'fart' makes me laugh. I have iFart on my phone. I have remote whoopee cushions. Farts. To me, there's nothing funnier."
In other words, if you're ever around the guy, certainly look before you sit.