When I finished my chores, I quietly slipped into the living room to stand in the spot Mandy and Katherine had shown me earlier. I was still wearing the apron, and had the ball gag in place. The women were both stark naked, in the middle of their 2-girl webcam show. When Mandy saw me, she told the guys she'd be right back. She slipped around behind the cameras, took my apron off of me, and gently backed me up against a wooden vertical beam. She picked up some handcuffs from a little table nearby, and cuffed my wrists behind the beam. My dick continued to twitch, and poke the empty air as I savored her glorious nakedness, and felt her hair brush my shoulder.
Then she returned to the little table, and bent over at the waist to pick up something else. I stared down at her magnificent ass as she did so. She returned with a collar, and a very long length of nylon cord. She put the collar around my neck and fastened it so that the little ring on it was in back. Then she threaded the cord through the ring, around the post, and also tossed the rope into the air above me, so that it went over a horizontal beam. She tied the rope to itself in such a way that it kept the back of my head against the post, and also prevented me from sliding down.
Thusly she immobilized me so that the most I could do would be to jump up and down in place. Or I could have kicked my feet about, but not without choking myself in the process. But the only sensible thing to do was to just stand in that spot.
She returned to the little table again, and picked up a piece of metal of some kind. I had no idea what it was. When she returned, I tried to get a closer look. It seemed like a tiny single handcuff. She placed it up to my crotch, and I began to get nervous, suspecting she was rigging up some additional bondage involving my genitals. She placed the cuff-like contraption behind my balls, and around them, hooking it to itself on top. I looked down and saw a metal piece protruding from the front.
Next she went to the little table and got a curved metal tube. When she returned with that, she held it in one hand while she flicked at my balls with the finger of the other hand. I grunted and winced; she glared at me to remind me to make no sound. I tried dancing about to escape the blows from her flicking finger, to no avail. It hurt!
I was teary-eyed and gasping for breath when she finally stopped, and soon I realized the purpose of her ball-flicking torture. I felt her slip the curved metal tube over my now-soft dick. At the top of the tube was a piece that hooked on to the other little piece protruding from the "ball cuff". Aha, I realized. These two pieces constitute one fiendish contraption, intended to keep my dick from becoming erect without considerable discomfort. I sniveled when I realized that when Mandy (or "SexyCallie") returned to do the webcam show with "PussyKat", all of the action would be live right in front of me, and I'd have to stand against this post, watching it and groaning in painful frustration, not even permitted to enjoy a full boner.
As if that realization wasn't bad enough, imagine my horror when Mandy made one last trip to the little table, and came back with a padlock! The lock went through a hole where the "ball cuff" and tube attached, keeping them linked together. Furthermore, the padlock had a key (of course), which Mandy turned and removed. She held the key up to my face and smiled, savoring my wide, and frightened, eyes.
For the next hour, I stood against a post in Katherine Mullens' living room, gagged, and outfitted with this infernal "dick tube", as I watched the sexiest girl-on-girl porn (live, even!) I had ever seen. SexyCallie and PussyKat responded to all kinds of requests from viewers who tipped them site tokens. Whatever viewers wanted to see them do, they did. In addition, they told the guys that when the total number of tips reached a certain amount, SexyCallie was going to introduce PussyKat to a "toy" PussyKat hadn't seen before, something called a "hitachi", and SexyCallie was going to make PussyKat cum.
My dick continued twitching for all it was worth, but the tube kept it pointing down painfully, torturing me with every twitch. The tube was hollow, so eventually the head of my dick poked out the other end. This made the pain worse, because at that point, every twitch would cause the edge of my head (just where it meets the shaft) to rise up and rub against the end of the tube. I leaked precum all over the floor in front of me, forming a little puddle of "helpless slave juice" over time.
The "hitachi" was a toy I'd never seen before, either. It was an electric device consisting of a plastic rod about a foot long, at the end of which was a marshmallow-looking thing that appeared to be made of rubber. A switch on the side of the rod made the end vibrate. When Mandy applied the device to Katherine's pussy, the effect seemed to be intensely pleasurable for her. My eyes were like saucers when she made Katherine cum, as Katherine squirted all over the plastic sheet in the middle of the living room. I had seen women do this in porn but had never witnessed something like this in person, and, despite having licked Katherine's pussy many times, had never known her to squirt.
When the show was over, the girls spent a few more minutes chatting with the guys, and then SexyCallie announced she was signing off. Once they shut down, Mandy asked Katherine, "So did you like what the hitachi does?"
"Oh my god, I LLLLOOOVED it!" Katherine replied.
"Well... you haven't actually seen everything it can do. You're about to find out what else it's good for."
"Oh my god, I don't know if I can handle more, haha."
"Well, shall we take care of Davey over there?"
"Take care of him? What do you mean? Looks like you already took care of him just fine. Wanna go to bed? Hahahaha!"
"Haha. Well, I doubt his sleeping arrangements will be that much more comfortable, but let's take care of emptying his balls. He did pay for it."
"Ecch. Do we have to? Hahaha."
I was relieved that Mandy was indeed intent on "emptying my balls" that night instead of waiting until morning. I wasn't looking forward to the inevitable "cum cleaning" that would follow, but at least I would get release, and get this awful metal tube off of my dick.
Mandy asked Katherine, "Did you want to inspect slaveboy's work and make sure he did all his chores to your satisfaction?" Katherine answered that she did, and headed toward the rear of the house to have a look in the basement, and in the bathrooms. While she was gone, Mandy unplugged the hitachi, and then carried it in her hand as she walked toward the post where I was restrained. She found an outlet behind me, and plugged it back in, though I did not know then what she needed it for.
She then went back to the middle of the living room and fiddled with one of her tripod-and-webcam assemblies, and her laptop. She seemed to be checking something on the computer; I assumed it had to do with the tips they made that night camming together. When she was satisfied, she returned to where I stood bound to the post. Katherine came in from the kitchen with a small cup, and also holding the thousand dollars in cash I had brought hours earlier.
Mandy said, "Well... Our little slaveboy here has not been permitted to cum in about seven weeks. So tonight we're going to empty his balls for him. But why should we care whether or not his balls get emptied, PussyKat?"
Katherine replied, "Well, SexyCallie, he did pay us a thousand dollars to be allowed some relief for his pent-up balls."