Forget Gwyneth Paltrow, Chris Martin says it's Tom Cruise who taught him all he needed to know about sex. "I've got Tom Cruise to thank for teaching me the ways of the woman. The first sex scene I ever saw was him and Kelly McGillis in 'Top Gun', " reveals the Coldplay front man. "I was thinking 'What the hell is going on in my trousers?' It was all in silhouette so it was very harmless. But when you watch it when you're 13 it's like 'wow'." And it seems things haven't changed all that much since he grew up, with Chris insisting the only reason he doesn't do drugs is because he doesn't want to hamper his performance in the bedroom. "I don't do anything like that because I can't do music. And I can't have sex, " says Chris. "And if you can't do those things, then what's the point?"