"I'm almost breaking the rules now. I've come close to showing you my pussy. I want to. I don't think Master would have to know that I gave you a peek. Wanna see it? Just pleasure your clit and nothing else, and I might show you. Are you even looking at my titties anymore?" She giggles.
"Pussies are for next time, and showing you would spoil the surprise. Then again, are you one of those naughty girls who wants to open the presents before her birthday? It's a weird feeling, isn't it? I mean you already know what a pussy looks like; you're pleasuring your own right now. But yet you're dying to see another. Just like you were dying to see pink before. I'll make a deal then. Keep fucking yourself until you get an edge. If I show my pussy, then you have permission to cum. If I decide to be a good girl, then you don't get to cum. Let me think..." She thinks for three minutes, and you keep up the fingering the entire time.