Notes

In order to gain his perverted magazines back from Krillin, Roshi must submit to his student for a full day.
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Roshi shook his head, and moaned out his pleasure as Krillin began. He knew he should've woken up earlier to check up on his magazines, but, noooo, he had to get preoccupied and allow his sneaky bald student to steal them. Then, Krillin had blackmailed Roshi into becoming his submissive for a whole day.
The first thing Krillin found out, was that Roshi, despite being an old man, was incredibly fit. Soft nipples lay on large, muscular mounds of meaty hills, or his pectorals. Below, six smaller hills rolled around his stomach. It had actually taken Krillin to realize that Roshi had a six-pack. After that realization, Krillin began.
He had slid his hand over his head, surprised at its smoothness, before moving downwards.
And that's where this story begins.
Krillin cupped his mouth into an O-like shape, before leaning forward, and taking one muscular pectoral into his mouth. The bald man moaned at the sudden flavor, unique, yet delicious, that suddenly exploded onto his tongue. His eyes widened. His master's skin was delicious. He began to almost devour his right pectoral after that, like a hungry animal eating the best meal they would ever get. Roshi, the poor, old fellow, could only lay there and moan in abandon as his sensitive pectoral was teased endlessly by Krillin's tongue.
Roshi shook his head, his whole body shaking from the tortorous teasing he was receiving. Why did it feel so good?, Roshi wondered half-heartedly.
"Ugh!" Roshi yelled, brought out of his thoughts suddenly, as Krillin bit mercilessely into his master's hard nipple He began to nip on it, moaning his pleasure at the deliciousness of his master's skin at the same time.
"Please..." Roshi managed to muster, "Krillin...".
Krillin just smirked as he continued to devour Roshi's pectoral and nipple, loving the begging and crying he was getting from Roshi.
"Mmmm... Roshi, you really are a slut, you know that?"
Roshi shook his head in humilliation, yet couldn't deny the claim. He really did love the pleasure. it was like a drug to him, and he wanted more.
10 minutes or so, passed by, before Krillin took mercy in Roshi and stopped teasing that one pectoral. When the bald man finally leaned back, Roshi was trembling underneath him, his right hand tentatively covering his right pectoral, which was red with abuse. Krillin smirked again, and before the old man could react, he dove into his left pectoral and devoured that as well.
Roshi threw his head back, his pupils rolling into the back of his head. He had already nearly come from just having his right pectoral teased, but with his left as well... He wouldn't be able to last.
"Krillin..." Roshi said quietly, "I... I.... AGH!"
Krillin had finally taken his nipple in, giving Roshi a sharp, and sudden burst of pleasure. His whole body shook once again in pleasure, and his mouth, despite his best attempts to talk, wouldn't move at all.
Krillin continued to devour his left pectoral mercilessely until Roshi screamed, louder than he had ever before, and came, his cum splashing all over his muscular pectorals and abs.
Krillin leaned back, and smiled. His tongue swiped out a little bit of cum that had landed itself on the man's face, and his smile got even wider. His cum was incredible. Overcome with desire to try more of it, Krillin, without explanation, leaned forward and continued to suck on Roshi's pectorals and nipples. The old hermit moaned even more, his over-stimulated body quivering his pleasure. After Krillin finished with the pectorals, he finally leaned down and eyed the abs. His tongue flicked out slightly, but found it just as, if not more delicious than his pectorals. With this assurance in his mind, Krillin began to dig in once again to the delicious meal in front of him. Roshi cried out to all of this, and just laid there helpless as Krillin used his muscular body as some kind of food, a type of sustenance for him. He was sucking all of the cum up like a wild animal. Roshi swore that he could even hear animalistic groans in between, although whether those were his or Krillin's, he wasn't sure. Eventually, once all the cum had been sucked off his upper-body, Krillin, instead of having mercy on the poor old man, leaned back in and began to lick his abdomen. This continued for about 5 minutes. When Krillin was finally satisfied and leaned back, Roshi was spent and tired. His whole entire upper-body was overstimulated and red with pleasurable abuse. His cock laid flaccid on his muscular legs, having come twice already. Unfortunately for the little hermit, the day was young. He still had to endure this torture for 23 hours before it finally stopped. He lay there, tired and spent, and hoping Krillin was done with him. Krillin, however, had different ideas, and his hand moved towards Roshi's cock, before finally making long-needed contact with the organ, in which Roshi replied with a "fuck!" and a splattering of pre-cum.
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It had been 4 hours since Roshi had been forced to become a slave to his student. Krillin had left a little earlier for training, but didn't have mercy on Roshi either way. His ass was being plowed with a large vibrator, his cock restricted with a cock ring. His arms and legs were tied to the bed posts so he couldn't move either. He could only lay there and scream in pleasure as his overstimulated prostate was slammed into again and again.
Roshi sighed, for about half a second before the vibrator slammed into his overstimulated body again and he screamed, for he knew that he couldn't last for another 20 hours this way. His body couldn't handle it, probably.