After roaming her hip and back it settled on her nice ass. At first I just let my hand move over it enjoying the feel. Then I took a cheek and gave it...a good squeeze. I jiggled it a bit in my hand and then gave it a soft swat. She broke our kiss with a look in her eyes I had never seen before, “harder.”I had never experienced anything like this before. So I smacked her ass a little harder. “Harder.” So I did. “Harder!” I gave her one more smack a little bit harder. She grabbed me by the collar. ...........................................................‘Get up! Get the fuck up! I’m tired of this shit now. Is getting my cock in your mouth so difficult? Can’t you do a bloody thing right?’Looking down I watch as she struggles back onto her knees. I know that must have hurt as she fell so heavily, but she must learn to control her body and to strive to please me whatever the cost to herself.My cock throbbed for her mouth but tormenting the slut was irresistible.‘You have one more chance. "You can do much better than that. Kiss each other like you're in love." Embarrassed they did much to the cheering of the others. "Now you grab your drinks and sit by each other for the rest of the evening, hear?"They nodded as the staff had a small table for two set up with chairs wired together so they couldn't be pulled apart.At the break, Erin got out of her candy stripe dress, showered, dried off then sat down to put new makeup with Natalie working on her hair. "You were great," she said.. I can only imagine what it would feel like if I had a pussy and I was getting fucked by a hard cock. "Once again I must congratulate you on your performance thus far. Most of the guys I have worked on have only made it to 6 or 8mm before giving up. 12 is great and I know you can take more eventually. Now I have one more measurement I have to do and I need to remove your gag. I must remind you that if you do anything drastic there will be consequences. Understand?" I nod and Nurse Crotchet.