11-9

Chapter 9: Demonstrating Expansion and Contraction Abilities (Part 2) 

While slapping Number Sixteen's buttocks, the man glanced sideways at Liu Yong's greedy, longing expression. With a cold laugh, he inserted his thumb into Number Sixteen's anus as well. 

At this point, what was stuck in Number Sixteen's anus was the part where the five fingers were gathered, even thicker than the wrist. The man didn't push in further for now, but stayed there, moving the surrounding intestinal flesh in circles or back and forth. 

Number Sixteen's moans grew louder and faster, matching the rhythm of the man's arm rotations and thrusts. However, the man's movements were calculated - his bundled fingers roamed the intestinal walls without directly stimulating Number Sixteen's sensitive spots. 

Number Sixteen's anus had long been trained to be sensitive and lewd. By now it was craving more, swaying his hips to match the master's movements, hoping to please the master for a reward. 

The man felt he had toyed enough. With a final push, he shoved his entire hand and wrist into Number Sixteen's intestines. Then he slowly curled his fingers into a fist inside Number Sixteen's already stretched intestines and thrust forcefully into the depths. 

"Ah! Ah... Ahhh!" Number Sixteen cried out repeatedly as if he couldn't catch his breath. His testicles, swollen to the size of a cantaloupe, retracted. His penis twitched and reached climax after the first thrust. 

But without the master's permission, Number Sixteen didn't dare ejaculate no matter what. He could only endure, which was far more difficult than enduring pain. His whole face contorted. 

Even so, clear fluid flowed quickly from the tip, wetting the platform. The fingers that had been spreading his buttocks clenched tightly, as if trying to use pain to fight the pleasure. 

The thick flesh of his buttocks was deeply indented. One could imagine that when the fingers were removed, there would be clear purple bruises left behind, surely filled with a beauty of abuse. 

"Leaking again, pissing everywhere like a dog. Can't you control this thing at all?" 

Number Sixteen snapped out of his pleasure at the touch, realizing he had made a mistake. Cold sweat broke out and his fingers immediately relaxed. 

Whether pain or pleasure, it must all be given by the master. He would not allow his slave to use such opportunistic methods to resist him. 

The man grabbed Number Sixteen's penis, which was swinging and dripping fluid with his movements. Using the precum already coating the shaft, he repeatedly stroked and rubbed around the glans and corona. 

As soon as the hot, throbbing penis touched the master's palm, it twitched again. Large amounts of clear fluid instantly soaked the man's palm, with more dripping through his fingers. 

"Ah... ahh... please master... please spare this slave! Ah... please master help this slave!" 

Number Sixteen begged tearfully.  

He hadn't ejaculated, so he hadn't entered a refractory period. This meant that with even the slightest stimulation now, he could climax messily in the master's hand at any moment. 

But he understood the terrifying consequences of ejaculating without the master's permission. So he could only beg the master to stop stimulating him or give him some help. 

"Help? How should I help?" The man understood clearly what Number Sixteen wanted, but it wasn't his style to give it directly. 

"Please master... ugh... please lock up this slave's cock... Please lock up this slave's lewd dog cock tightly right now!" 

Seeing the master seemed inclined to relent, Number Sixteen didn't dare delay and stated his request plainly. 

"Heh, you're being quite obedient now." 

The man appreciated his little slave's honest attitude. Of course, this was because he had asked first. One of his most basic principles in training was that slaves must answer whatever the master asks. 

He closed off the exit of the vas deferens. 

"Ah... ugh..." Number Sixteen's body jerked violently, then completely relaxed. His lower body maintained the position of spreading his buttocks upwards, but his upper body went limp on the platform. His anus, which had just been fisted, also bloomed open as the muscles temporarily relaxed. 

With the cock ring's restraint, he finally didn't have to actively hold back ejaculation. The tight ring almost turned his heavy testicles dark purple. But Number Sixteen sincerely felt this was a rare show of care and reward from the master. 

But clearly just using a cock ring wasn't enough. The man's principle in training was that good deeds may not be rewarded, but mistakes must be punished. The punishment for inflicting pain on oneself without permission could not be escaped. 

The man ordered Number Sixteen to turn over. Not daring to delay, Number Sixteen immediately rolled onto his back, hugged his knees, and spread his legs wide, fully exposing his lower body. 

The man now held a light yellow medicinal stick less than 10 cm long and only as thick as a toothpick. The end had a bean-sized bead that could plug the urethra. 

The size of this urethral toy was nothing for the well-trained Number Sixteen. But he was trembling in fear now, because this light yellow medicine stick was made from specially formulated and concentrated yam juice. Once absorbed by the skin and mucous membranes, it would cause itching a hundred times stronger than plain yam. 

Number Sixteen's pain tolerance was already very high, but what he feared most was this kind of uncontrollable, unrelievable itching arising from inside his body. 

"Ah! No... no!" 

The medicine stick dissolved quickly. Number Sixteen's eyes rolled back. His body on the platform began to convulse from the uncontrollable itching. His hands almost disregarded the master's rules to desperately rub his extremely itchy urethra and glans. 

The man had anticipated this. Restraints quickly emerged from under the platform, binding Number Sixteen's hands tightly above his head. His legs remained spread in an M-shape. 

The constrained penis and testicles sent waves of intense pain from the continued swelling. Liu Yong could no longer endure. Taking advantage of the man seeming focused on toying with Number Sixteen and not paying attention to him, Liu Yong carefully wrapped a hand around his own dripping penis and began stroking quickly with small movements. Though he still couldn't ejaculate in the end, it felt much better than forcibly holding back. 

Just as Liu Yong watched Number Sixteen being tormented to the point of breakdown by the small medicine stick, crying and begging for mercy, the man suddenly turned his head. Looking coldly at Liu Yong pleasuring himself, he asked: "Do you know what you're doing?"