I'm not making fun of you. You're a really and truly Prince. And I'm your slave.

8 seconds sound clip from the Wuthering Heights (1939)) classic radio play.

You can hear this line at 00:11:25 in the radio play.

Quote context

[...]

- Tell me about it... again.

- It's all true. Cross my heart.

- Your father was - was Emperor of China, and your mother - a Queen of India.

- You were kidnapped by wicked sailors and brought to England.

- Don't make fun of me, Cathy.

- I'm not making fun of you. You're a really and truly Prince. And I'm your slave.

- You're not my slave. You're my queen, Cathy, and you'll always be my queen. Nobody else will make you his queen, you hear?

- Yes... your queen.

- And that's the way they grew up. Wild and free, roaming the moors together.

- But Hindley grew more and more jealous.

- Cathy was eighteen and Hindley past twenty-one when Mr. Earnshaw died.

[...]