"You're here to please me, not the other way around."

"Stacey, there's something you need to understand. You're here to please me, to please my cock, to provide comfort and pleasure to your master. When you cum while I fuck you it taints the purity of that. It's so much better to serve purely," you say.

Stacey looks up at you, eyes wide. She cannot protest, with her SUBMISSIVE **** command written on her, but she's still at war inside. Desire is clouding her thoughts. Her hand starts to slide between her legs again before she catches it.

"Master, I don't understand," she whimpers softly.

"Earlier you served me by giving me a blowjob. You gave your master pleasure, but didn't get to climax yourself. That's pure service. That's pure submission, unpolluted by selfish desire. I'm not saying you'll never cum again," and at those words her face relaxes with visible relief, "but it will be as a reward for loyalty not just because you're getting fucked."

"Well... All I want is to serve you, Master," she says. The words are unsteady, like she doesn't really believe them. All the better.

Her eyes focus on your cock, already hard again after your speech.

"How may this **** demonstrate her loyalty, Master?"