She pulled out what looked like a long fat tube. She pulled out a tube of K-Y and started to apply it to the inside of the tube. Then she placed it over my dick. She pulled out a box from the drawer and placed my balls inside of it. She turned on a switch at the top of the device and it started to vibrate. After a while it would stop vibrating and I could feel something slowly rubbing up and down my shaft. That would stop and I felt something close around the bottom of the head of my cock and slowly rotate back and forth. It would switch between these things in a random order. The machine felt great (although not as good as Judy's blow job). After all the treatment I had gotten, and the nice show I was treated to it didn't take me long to feel my orgasm building. Just then the machine turned off.
Noting my confusion, Sara said, "It is a product of my own invention. It has a sensor in it that can detect when you are about to have an orgasm and stop. When you start to calm down, it will start back up again." She and Judy gave me a deep kiss just as the machine started back up again and left. They left me there for hours. No matter what I did, I could not ignore the workings of the incessant machine, nor could I get it to let me come. I was going insane. I needed to come so bad.
A few hours later, Sara and Judy came back in, naked still. Judy shut off the machine and let it sit there for a few minutes before taking it off. I was so glad to be rid of that evil machine. As she took it off Sara stood over me and said, "Congratulations slave, you have almost graduated from your training. You must now eat us both out to an orgasm while the other one goes down on you. If you come before both of us has finished...you will have to start the training all over again."
I couldn't believe what she was saying. How in the hell am I supposed to last that long after all that they had put me through? I didn't know how I was going to do it but I was going to succeed damn it!!!
Sara straddled my face and Judy went to work on my cock. I dove right in to Sara's pussy. First I licked the inner folds with the tip of my tongue and slowly dug in deeper and deeper. She was already wet and had my face soaked in a matter of seconds. I moved up to her clit and slowly circled the sensitive organ without touching it. Then I went back around her folds. I started to feel a tingle in my dick and decided I had better not tease her too much. I didn't have much time. Trying to get my mind off of what Judy was doing to my crotch, I attacked Sara's clit. I sucked it into my mouth and ran my tongue over it. She shrieked when I finally touched her swollen bud. I ran the flat of my tongue over it keeping a constant pressure on it. I didn't let up for a second as I lapped at her silken folds. I saw her clit start to swell up bigger and knew she was about to come. I sucked it into my mouth and started to hum as I licked it. The extra vibrations sent her over the edge screaming and convulsing. She came so hard that she almost fell over.
She got up and Judy jumped on my face. I got a little reprieve since Sara still hadn't recovered from her orgasm and hadn't started on me yet. Knowing that my time was short, I dove into Judy's sweet red vagina. I flattened my tongue and licked the entire length of her slit, going deeper with each pass. After a few passes over Judy's swollen pussy, Sara regained her composure and started to swallow my cock. She was deepthroating me in an attempt to get me off quickly, but it didn't work. I was so enthralled by Judy's pussy that I was able to mostly ignore her. I flicked my tongue over Judy's clit and she cried out. I inserted my tongue in her and flicked it in and out. I sucked her clit in and out of my mouth like Sara was doing to me and I felt Judy start to tense up. Her legs crushed the side of my head when I took her clit into my mouth and started to hum and lick it. She screamed, "YES, YES, YES!!!" as she came.
I had done it and not a moment too soon. I started to feel the pressure building up in balls and half-expected Sara to stop again, but she didn't. Instead she swallowed me in as deep as she could and started to suck on my cock. Her hands were playing with my balls and jacking me off. My first shot felt like a train hit me. I yelled out as I came, and Sara started to swallow all that she could. I just kept coming and coming. I thought it would never end. Sara took my still spurting dick out of her mouth and continued to pump it. Judy put it to her lips and continued the swallowing. I must have came for five minutes. I finally stopped and relaxed. I was exhausted.
Both women crawled up on the bed and cuddled up next to me, Sara on my right and Judy on my left. They leaned over me and kissed each other and then they kissed me. They lay on their sides with one leg over one of mine and whispered in unison, "Congratulation. You passed."