A few weeks ago I quit work and went living with my master John, about 20 years older but promised me a better life for an early twenty youngster. I worked in his studio, sometimes as a model, most of the time as a cleaner or a play mate.

Once he told me that he wanted to extend my limits but was not telling me what that meant. He told me to go in his car, I got blindfolded and had to wait. After 10 minutes of driving as I was already lost, he told me to undress. I tried to resist, but he insist so after a few minutes I sat naked beside him, seeing nothing. After about half an hour after a rough ride the last 20 minutes, he stopped the car and got out and a few seconds I heard the door at my side opening. He told me to step out en keep my hands to my back. A few seconds later they were roped behind my back and I stood there naked, not knowing where, but it was quiet, only the sound of the wind through the trees. Then he grab my sack and roped them. By pulling on this rope I felt my balls going in an certain direction and if I don't want to loose them, I had to follow them. Without a word we walked through the forest, sometimes changing direction, I got that message from my balls. After a few minutes I heard voices and frightened a little. That a dark voice said "Put him over there". I was walked another 20 meters, then I got the command to turn, my wrist were set free but at the same time strong hand got them and a they were tied up above my head. Another voice said: "human dogs may not have hair, there and there". A second later a razor started to shave off my armpit hair and my pubes. A moment later they told me to swallow a candy and it was pushed in my mouth, it tasted not sweet but I swallowed it. I heard the same sentence about 7 times. Then I felt I hand to my balls and a man said: "Now you'll listen to the name 12M2". I felt something written on my shaved abdomen and then my sac was stretched out and after a few second I felt a heavy weight on my balls and another moment later I felt a butt plug in my back. Then my arms were set free but I was told to make fists and some gloves were pushed over my fists and tieded. Then the blindfold was taken away and after got used to the light again I saw about 15 man around my, half were naked like me. We stood there in a open space in a forest. Beside me stood my master John and smiled, "Now you'll meet your limits". The other human dogs were in the same circumstances, all they had a name on there abdomen, I saw 12S1, 12XXL, 12M1, 12L2 etc, but there were to who were different with the first two figures, one 11M and a 10S. I figures out that the S, M, L and XXL has something to do with the dimensions of there genitals. It seems all the dogs got horny, because they all got a stiff cock and mine also rose, I'm not sure if it was my horniness or the candy (could be Viagra or something like that). The butt plugs seemed to be tails.

The 'dogs' had to go on knees and fists and we had to fetch tennis balls, sticks, jump over branches, and because of the weight on my balls, it was not always nice. But my master whipped me up and if I was to slow, a twig was used to encourage me.

After about 10 minutes they stopped us and we were back to our places and blindfolded. Also the heavy weight on my balls were taken away. Then a man told that "the fight will today be for a ball and a cock". 12L2 and 12M1 were told to come in the middle of the open space and they were told to fight and try to get the others balls in the mouth. They may not bite in other parts of the body, if they did they will loos the fight. When the word stop was said, the fight was over. I heard "start" and then I heard some two men fight, as I was blindfold, I couldn't see anything. After a few seconds I heard "stop" and a man said "the winner is 12M1". Then there were some noises I could not recognise. After a few minutes the crowd applauded and then a man said "12XXL and 12M2", that was I, "come to the centre" and my master guided me to there. We got the same instructions, they took away our blindfolds and there opposite of my stood a young man, about the same age as me, about 5 cm smaller, blue eyes and blond hair. Then I heard "start" and my opponent tried directly put his arms, with also gloves over his fists, and tried to throw my on the ground. A short moment I was overwhelmed but than I realised my aim was to get his balls in my mouth. As we were both fighting, without using the hands was not that easy, a moment I saw his genitals for my eyes and as I wondered how to get to two large balls in my mouth, I felt my balls were sucked in his mouth and I heard "stop". I lost! And from a smaller youngster than myself. I was blindfolded again and instructed to stay on my knees and fist on the ground. The butt plug was taken out and a second later I felt something else, the cock of my opponent. His victory was to fuck me. As he pumped me I felt his body on my back and felt he had his orgasm, the audience applauded. Then I may got back on my feet guided back to my place, defeated. After another two fights, I got another run and had to fight with 12L1, I thought he also lost a fight, but was not sure. Still the Viagra worked and I was guided to the centre, was freed from my blindfold and saw a pretty young man opposite of me, also with a stiffy. As I was eager to win, the fight took a quit a long time, but just a split of a second before I had hiss balls in my mouth, I felt the bit of him on my balls and I was defeated again. And again I was fucked in the middle of the audience. I was guided back to the edge of the open space and had to wait. Another fight took place and again there was an applause at the end. Then a man called "Last fight" and I was called to the centre and 10S. I was guided and after the blindfold was gone, I saw a big, 10 cm taller, red haired man in his 30-ies in front of me, he was named 10S and before realizing that I was told not to get his balls in my mouth but his dick, the dick that was standing right out from his abdomen. Defeated twice, I was eager to win and after the "start", I took lead in the fight. I worked him on the ground and tried to get my balls as far as possible from his mouth. I saw his cock before my eyes and saw he had no balls at all. A moment I shivered and he tried to take change of this, but a firm bite from my I had his cockhead in my mouth and a moment later I felt his mouth over my balls. I won! I heard "stop" and I let his cockhead from my mouth. I got up, got blindfolded again, I felt a condom coming over my cock and pushed on my knees en a hand directed my cock into I hope the butt of my redheaded opponent. I fucked and after a few minutes I came, laying over the back of the man and he said "thank you". I kissed him in his neck and got up my feet. I was guided to my place and my arms were roped again above me. Also my legs were roped. Then I heard a voice "Lets take the parts". I felt a hand to my genitals and they were cleaned by a liquid. It felt cool. Then suddenly I felt something like a knife into my sack and I cried. I heard also a cry from the another man. It heart terrible as they were working on my sac and after a few moment I felt stitches and the treatment was stopped. Still I had the stiff cock of the Viagra. I was disroped and guided by my master during a walk of ten minutes with lots of pain in my genitals to his car. I had to seat in the back and the gloves were taken off, the blindfold was removed and then I saw my cock and ball sac, there were stitches in and a ball missed. I fainted.

When I was back I was laying on the bed, looked at my shaved abdomen and saw my weak cock and a red half empty ball sac.

After a few days I was on my feet again and I got a little angry on my master for to go further then my limits. Our discussion was so negative, I told him that I hated him. Then he told me to leave, go out and never come back. I told him that he has promised my a future so he could not throw me out. He hesitated and went to make a phone call. After a few minutes he came back and told me he had found a solution, I could stay at home with a friend and after our fight was over we would talk again. I took my things and we got to his car. He droved about 2 hours and stopped by a small house in a avenue. We went out and a grab my luggage. He rang at the door and a few seconds later a man opened the door, it was the same redheaded man from my last fight. He told me I was welcome for as long as I liked and with a grumpy "bye" I saw my master John leave. The redheaded man told me his name was Jim and he asked me I wanted a drink. As I was still not in a good mood, I asked him for a tea of coffee. He went to his kitchen and made some tea. As he came back we had our tea and we talked about small things. Then he ask me how it was with my genitals. He said he saw me scratching my abdomen. I told him my pubes were growing back. He told me then I had to shave it again and if necessary he could do it for me. Then I remembered the fight with the trophy's, I had to miss a ball, so I looked at him and before I could ask him the question, he told me, "Yes and I had to loose my cock". "But", I ask, "I didn't see your balls than". "No", he said, "now I'm a nullo, I still only have a stump, would you like to see it?" I nodded and saw his pants going down. At the bottom of his hairless abdomen, only a small stump about 2 cm with a red top with a piss hole in it were there, no sac, just smooth skin. "May I touched it?" "Yes". I got over the stump with my finger and felt a sort of stiffness in it. "Yes," he told me, "it is in a aroused state". I felt my cock also rising and a few moments later we were laying on his bed having sex, at least a week since I had my last at the last fight in the forest.

When my sperm spurted out of my cock, a white liquid is coming from the Jims stump and we laughed. We licked each other clean and his "sperm" still tasted like normally sperm. He shaved my new coming pubes and that prevented me from scratching.

After the lunch, both naked, feeling each other bodies we had sex once more. Jim is a great lover and without his cock and balls we have more pleasure of the rest of our bodies.

We talked about my and his future. He was alone and had a job in a commercial house. He would try to get me a job in one of there shops.

After two months our relation is excellent, I wrote John a letter that I was still angry on him and didn't want to see him back and asked for a small support to start a new future. The last thing I heard from him was a deposit of € 5,000.

Now Jim and I live together and, as he is a excellent lover, I think about a future as also a nullo with just a small stump, but Jim still likes to have a cock in the family.