As you kiss and slowly fuck her, she gets very excited, saying:
"Faster! Harder! Why are you going so slowly, slave?"
"Mistress, please! I can barely hold back; I'm so horny!" you confess. "If I fuck you any harder I'll cum for sure!"
"Oh, I see. I don't want you to have an orgasm, do I?"
"Right," you say and slowly pull out...