She must humiliate herself.

“Hold on a sec, Amanda. I want to have a talk with the girls.”

You slide your arms around Gillian and Ling's waists and lead them to a corner of the big, empty living room. In a low voice you say, “Girls, I have a special job for you.”

Their faces light up. Gillian leans in close. “Oh please, Master, how can we serve you?”

“I want to see how far this stuck-up bitch will go to get a big sale. But I don't want her to do stuff just because I say so. You girls get her to humiliate herself and it will make me very happy.”

Your slaves giggle at their assignment. You slide your hands down to their asses and give them a little squeeze, then lead them back to middle of the room to talk to Amanda.

The realtor looks at the three of you knowingly and gives you a sly wink. “I'll bet you three are eager to close this deal so you can start enjoying this house. I'm almost sorry I won't be here for the fun!” She winks at you as you look over her curvy body. “So, what do we need to do to close this deal?”

Ling looks at your for permission, then grins merrily as you nod to her. She looks back at the blonde woman and says, “Get on your hands and knees!”

“What?” says Amanda. She manages to keep a strained smile.

“You heard her,” says Gillian. “This is a three million dollar house. You're going to get a huge commission. You should be so thankful that you get down on you hands and knees.”

Amanda's good will runs out. “Okay, that's enough. I should have known you couldn't afford a house like this. I'm not going to waste any more time on your little prank.”

“Oh, it's not a prank,” you tell her. “You know for a fact that I can afford it and I'm perfectly willing to buy this house if I get what I want. The only question is if you're willing to do what it takes.”

Your words fill Amanda with a certainty. If she does what you want, she gets a huge commission. Simple. She turns to Ling and sees the stacked Chinese girl pointing towards the hardwood floors. Slowly Amanda lowers to her knees.

“Hands and knees,” says Ling. “Like a doggy.”

You squeeze Gillian and Ling's asses as Amanda lowers to the ground. Watching the arrogant blonde struggle to keep a pleasant expression is a huge turn on. Your slaves get more worked up as your grope their butts. Gillian moans lightly and lowers a hand to your crotch, forgetting the realtor as she caresses you lightly through your pants.

Ling enjoys your touch too, but enjoys humiliating the groveling woman enough to stay focused on it. “Now bark!”

“What!?”

“This is a big sale. You're gonna make a ton of money. If you want that money, you'll bark like a dog!”

Amanda's face contorts in a viscous sneer. She glances down at your crotch and watches Gillian rub your pants harder and faster. As Ling is about to say something, the groveling blonde lets out an, “Arf!”

“Louder!” shouts Ling gleefully.

“Arf! Arf! Arf!”

It suddenly occurs to you that having the lovely blonde woman on all fours creates a lot of possibilities.