Only with his supervision

"From now on," Matt said, "you may spank your daughters, but only with my supervision."

"You mean--"

He spanked her again. "I mean what I say. When you feel the need to spank one of your daughters, you will call me. If I feel the spanking is justified, I'll give permission. I may require you to bring your daughter to me and spank her in front of me, or I may allow you to do it alone with me watching on the phone."

"But... my daughters are young."

"If they're old enough to spank, they're old enough to be seen receiving spankings."

"Yes, master."

"Now," Matt said, "you're still wearing your clothes. Get rid of them. I want to see if your body is worth my time."

"Yes, master." She hopped off the bed and started stripping.

Of course she put on a show, slowly tugging down her stockings, making a production of losing her dress and then, finally, her bra and panties. He did notice she wore her panties over her garters... which meant she had at least considered the possibility that she would be stripping for a man that day.

He yawned. "Stand in front of me and hold up your tits with your hands."

"Of course, master." She stood still facing him but with her eyes downcast, holding her tits up and out to him as if they were her gift.

He unzipped and tugged out his dick. "Suck it."

"I don't do--"

He shook his head. "Wrong answer." He grabbed her by the hair, pulling her head down until it was between her knees, then slapped her ass again. "I don't know what kind of men you're used to, slut, but obviously none of them thought you were worth the bother of training. Maybe they were right. Should I waste my time with you or should I go back to my porn girls. Every single one of them is younger, hotter, and more obedient than you."

"I'm sorry, master. Please, give me another chance."