Princess Kira was paid by an organization which wanted info held by this guy. She did not ask much. She just wanted her money paid and it was paid in full and in cash. So she got to work and she used her ass to dominate, torture and get the info she wanted. With her facesitting and torture prowess, it did not even take her half an hour to get the info.
This customer was too stubborn for mistresses Kira and Sofi's liking. The mistresses had to make sure that they taught him a lesson and that is why they chose to use facesitting to deal with him. He was in pain and he was humiliated as they did their thing on him. He wished he had never messed with them but it was already too late for him and he had to endure what they did.