Unfortunately, knowing more than you want to about other people's sex lives tends to be a common casualty of talking to Jack Harkness. Especially when you react like that - it just makes him want to share even more!

"Oh really?" he croons, eyes dancing even more. "You mean you don't want to know about how he seduced me by capturing me a pterodactyl with a bar of chocolate, back in Cardiff? Or about the hot threesomes with our other partner, Spike, who just happens to be a vampire?"