As the huge silicon sound left your cock a huge gape was left behind. After several month of training you could take 2 cm wide sounds into your dick.
-Look at that beautiful gape, it seems that your training reached its next step slave. – Master said.
-What is the next step Master? – you asked.
-The next step is true submission. You must decide if you want to go further or stop, because the next step is going to be a permanent step. The stretching of your urethra was the preparation for it, but now comes the real deal. I want to do something sacrilegious to you. I want to take away your ability to produce sperm and give you a new purpose. So the next step would involve castration. Believe me slave this way of castration will be really pleasurable after a small time. First it will be uncomfortable but after that, you will go crazy from it. Decide now, are you willing to go further and become a true submissive or you stop and leave? – Master asked strictly.
-I want to be a good slave for Master. If Master wishes to take away my sperm im willing to give. – you said submissively.
-That my good slave. – Master said proudly.
Master brought a milking machine and put it to work on your cock.
-First we must empty your balls complitely and then comes the fun part. I will leave you now for a bit, letting the machine to do its job. Be a good slave and empty your balls complitely till I come back. Oh and say goodby to your cum. – Master told you with a grim smile.
Master left and you were left alone with the milking machine that sucked your dick mercilessly. Master came back after an hour. You were sweaty and drolling as you came so many times but the last 3 of your orgams were dryorgasms.
-I see you are empty my slave. Good! We can continue the process. Are you sure you want to continue? There is no going back after this? – Master asked you.
-Yes, Master! Please destroy my balls and castrate me! – you begged.
-What a good slut you are. Your training went well. – Master said happily.
Master removed the milking machine from you and put it away. He stepped before you grabbed your dick and started to move his hand up and down on your shaft.
-For the next step I need you to cum when I tell you to. We must synconise so nothing goes to waste. – Master explained to you.
As he was fapping you and you got closer and closer to orgasm with his other hand he grabbed his semi hard dick and put it very close to yours.
-I know you are close slave by your moans. I want you to cum now! -Master ordered you.
As he said the last word he quickly put his semi hard cock’s head onto your gaping piss slit and pushed the tip in while he was jacking you off. You didn’t need much more and you came in the same moment you saw Master relaxing. In a second as your orgasm hit you something else also hit you. Master’s piss. Yes he started to piss into you. As he pushed his tip into yours tightly, his urine couldn’t escape. It went deeper and filled your dick quickly. As your ejaculatory duct was open the piss entered those small tunnels. You felt a very strange feeling as piss was flowing towards your balls from which your cum would come. It wasn’t bad but wasn’t pleasant either. In no time you felt that Master’s piss reached your balls and started to flow into them. It was the most bizarr feeling you have ever felt and you loved it. You felt as Master’s golden nectar was filling the space in your balls and not just the available space. Master’s bladder was huge especially compared to your balls, so as the flow didn’t stop, your balls started to expand and swell with his urine. You were in ecstasy as you felt the hot liquid enter and fill all your cavities in your genitals forcing them to expand.
-Yes, my slave! Savour the feeling of me destroying your bloodline. Your gene pool is ended. From now on you can’t produce any sperm, because I just took your ability to do so with my piss. By the look on your face you love as I empty my bladder into your balls. – Master said with dominance.
-Yes Master, please continue filling me. I am complitely yours. I don’t deserve to have a bloodline of my own. I am happy you took that ability from me. Just please continue peeing in me, it is so good. – you said while whining.
-Oh we are far from done slave. The process have some more steps. – Master said while flexing his abdominal muscles to increase the pressure on his bladder.
You felt as your balls were trying to accomodate the immense amount of invading urine and stretched and expanded as big as they could.
-Master, I think my pathetic impotent balls can’t take more. They fell too full… Ah… too much… any more and they will… - you whimpered.
-I know slave, thats the next step. You don’t need those useless balls, but we will need lots of space in you. – Master said with a sadist smile on his face.
In seconds you screamed as your balls couldn’t stretch more and burst from the pressure. You fainted from the pain, but Master didn’t stop, he continued filling your sac. All the piss was now pouring into your sac filling it.
-Yes, so much space to fill. Shame you fainted, you would have loved the feeling of your stretching scrotum. – Master said happily while laughing.
When Master was done your sac was round, taut and huge filled with his waste. Master put a huge plug sound into your dick preventing any leakage and then left you alone in the dark room. After some time you started to gain back your consicousness. You were dizzy and didn’t feel it first but some minutes later when you became more aware of yourself you felt your aching genitals. When you looked down you saw that your sac was enormous and your dick was plugged. You just remembered what happened. Master pissed into your balls till they exploded and now all his pee is stored in your now only sac and not ballsac.
Master entered the room in minutes as he saw you woke up from your faint through the cameras.
-How do you feel slave? – Master asked.
-I am still dizzy a bit and I feel some aching down. – you said a bit slowly.
-And what is your thought on your recent body change? – Master asked with probing eyes.
-I love it Master, I really do. Slaves don’t need balls and now I am truly a slave of yours. And the feeling of my huge sac is amazing. – you said happily.
-I am so proud of you slave. You really are my best creation. You became the ultimate slave you were destined to be. But we are still not done with this process. – Master said praising.
-We have to empty you and clean you out thoroughly and fill you with something much better. – Master oredered you.
With that said Master pulled the plug out of you and ordered you to push on your sac. As you did so pee started to flow from your dick. The thought that it was coming from where your balls were and not your bladder. The golden nectar was leaving you quikcly, it was a bit reddish from your blood and also the small parts of your balls were pushed out too. When you emptied as much as you could Master brought a hose connected to a tap and pushed it into your urethra.
-We will clean you properly, we will wash you again and again until I say you are clean. – Master told you.
-Yes Master – you said obidiently.
Master turned on the tap to a low medium flow rate. Water rushed into you, reaplying the feeling of being filled. You felt as the water travelled through you until it reached your scrotum. It was expanding quickly, growing bigger and bigger. It was fascinating to watch as it swelled to new sizes, putting on a very nice full shape. You felt between your hands as this miracle hapened. You were amazed by it, as you felt the weight of it and it became heavier with every second. When around 1.5 liter was in you Master stopped the flow, pulled the hose out and told you to empty yourself and you did so. This process repeated itself 5 times and the amount of water increased with every time. The last time you had 2.5 liter in you.
-Good, now you are clean. We can start the final part of the process. – Master said eagerly.
-What is the final step Master? – you asked curiously.
-This is the best part, with this step you will truly be mine and mine alone. I will become a part of you forever. -Master told you with sparkling eyes.
-I want Master to be a part of me. This way you will always be with me. Please do it quickly I want you to be a part of me Master. – you asked submissively and with puppy eyes.
Master brought a huge syringe the size of 1l. It was filled with something white.
-From now on you will carry my cum in your sac for the rest of your life. Whenever I let you cum you will shoot my load. If I tell you to go impregnate someone, you will make a kid of mine. This is your destiny slave, to be my cum tank. – Master said with a strict voice.
You didn’t have time to reply, because with his last word he pushed the syrenge into your dick and started pushing on it. You felt as huge amount of cum was entering you. You nearly came from only the thought.All of it went down into your sac and it just kept flowing. You loved every moment and every drop of it. Master kept on pushing and when the syringe was compitely empty, he put it away and looked at you in a way you loved very much with hunger, determintaion and lust in his eyes.
-Stand up Slave, and make me cum into my new cum tank between your legs. – Master ordered you.
-With pleasure Master. -you said while you got up.
You grabbed Master’s dick and started to massage it. He was fully erect the whole time just like you. Your hands moved up and down caressing the rod you loved so much.
-I am close Slave, prepare for the storage deposition. – Master told you.
You got close to Master and grabbed your dick too. You put Master’s tip into your cock just like he did when he pissed into you and started to fap him fast. Master groand in pleasure as he came. You moved even closer pushing him a bit deeper into your cock. You felt as Master was shooting his hot fresh cum into your dick and down into your huge sac. This was the best moment of your whole life. Master cumming down your shaft into his cum tank. You really became his property.
-Good Slave, I am very pleased with you, but there is one more dose of my cum that we will put into you. -Master said with relief.
-Yes Master, please put more of you into me. My destiny is to be your cum tank. – you said with sparkly eyes.
Master brought the second syringe full of cum and pushed it into you just like the first dose. Your sac grew and grew as another liter of cum was added to the mess inside you. You felt as the ever growing weight was pulling you down. From now on you have to live with this extra weight or more if Master decides that way. You will carry liters of Master’s cum between your legs for the rest of your life and you couldn’t be happier.
