Of course there is fan fiction. (Feel free to offer up links to your faves.) But that's not what I mean. The writers of Doctor Who seem to constantly be throwing kinky fans "a bone" with brilliant bits of dialogue. References to River Song always having handcuffs. The Master ("Say my name. I love it when you say my name.) in bondage gear or tying up the Doctor.
What's your favorite bit of intentional or unintentional kink?
What's your favorite bit of intentional or unintentional kink?