Notes

Ay, the Fourth Raikage, wasn't about to admit it, but he was attracted to Ohnoki. What troubled him about this revelation wasn't the age gap, however massive, nor Ohnoki's body as an old man.
Actually, that had been the problem at first. After accidentally opening the wrong door and seeing his grandmother shower, Ay had been forever since scarred, afraid of looking at any man or woman beyond the age of 60 if said man or woman wasn't wearing a shirt.
But then Ohnoki had invited him to the hot springs, and, however weird it may have appeared to his subordinates, Ay accepted. He hadn't even thought about how he would have to look at Ohnoki's naked body until he was actually traveling there. But he didn't want to just stand the Tsuchikage up, so he resigned himself to more wrinkly bodies and went to the hot springs.
It was a very pleasant surprise indeed when Ohnoki took off his shirt, revealing an incredibly muscular chest and torso underneath. His age was definitely there in the several wrinkles that decorated the otherwise perfect body, but Ay found it kind of hot, actually.
He tried not to look too much at Ohnoki's wet, dripping body, or how the water spread around his chest and accentuated his relatively massive pectorals. Or how, whenever he got up, his abs, shiny and perfectly sculpted, showed.
But as Ay sat there in his room next to Ohnoki's, he couldn't, no matter what he tried, get his mind off of the old man's sexy body. He took off his pants and jacket and took his length into his hand, but as his hand made contact with the heated skin, Ay realized belatedly that it wouldn't be enough. If he truly wanted to satisfy this newfound desire, he couldn't just have memories of Ohnoki's naked body. No, he'd need Ohnoki actually writhing underneath him. Ay groaned at the thought of covering that delicious body in come, and with that, he made up his mind.
"Raikage?" Ohnoki turned around and gasped slightly upon seeing Ay's naked form. He felt his cock stir and his cheeks heat up, but with a quick shove and turn he managed to hide both while also averting his eyes from Ay's muscled body. Though he would never admit it, he was attracted to Ay, the Fourth Raikage. How couldn't he be, with how shamelessly Ay displayed his body? Long had he had fantasies about being dominated by the much larger man, but he had never even thought about those fantasies coming true.
Until now.
"Ohnoki," Ay said confidently. He approached the older man's bed and shoved him down onto the floor, lust blazing in his eyes. "How would you like your first orgasm to happen?" Ay was nothing if not kind. After realizing his desire for Ohnoki, it became not a matter of taking him, but rather how taking him would happen.
"Raikage!" Ohnoki groaned as Ay ripped off his clothes one by one, tossing them away and revealing Ohonki's extremely well-built body. "Wh-what are you doing?"
"Isn't it obvious?" Ay muttered as he removed the last piece of clothing and held the struggling Tsuchikage down to the ground. "I'm doing what I should've done a long time ago. Don't worry. You just have to lay there and take it."
The Raikage then lowered his head onto Ohnoki's right pectoral, his tongue quickly licking up the rought but strangely delicious skin found there until it reached the poor elder's nipple. Ohnoki cried out in response and thrust his chest up involuntarily, his hands still struggling to break loose.
"Raikage! I really don't think we should-" But his sentence was stopped short by a moan as Ay took his other nipple into his hand and twisted it harshly. Then the Raikage's hand flattened against Ohnoki's firm pectoral and a bit of pre-come spurted from the older man and leaked onto his abs.
The Raikage's hand grasped Ohnoki's cock suddenly and the Tsuchikage cried out in both pleasure and reluctance, his traitorous cock twitching in interest as the younger male fondled the length.
Ohnoki's cock was now leaking a constant stream of pre-come against his abs, and it leaked onto his balls and taint and-
The Raikage raised an eyebrow as the older man arched his back, opened his mouth, and proceeded to come. A few seconds in, as Ohnoki screamed the loudest he ever had, his mouth was suddenly covered by Ay, who grinned at the writhing man underneath him and said, "we wouldn't want others to hear, now would we? Let's save the gangbangs for later."
Ohnoki moaned in response, his cock growing soft and his body growing limp and exhausted. His orgasm had lasted an entire minute, and now both his and the Raikage's body were coated in his come. He gasped in surprise as a hand grabbed at his cock again, rubbing at the cockhead until a bit of pre-come came out. His mouth was dry and his body could only spasm slightly under all of the oversensitivity. He cried out again and again, and he screamed, truly screamed, at least 10 times during that fuck session. By the end, he had blacked out, his entire body slack and covered in come and sweat as the Raikage stood satisfied over him. He grabbed at the Tsuchikage's nipple, but, to his disappointment, no moan came from the older male. With a sigh of resignation, he grabbed the unconscious body, tossed it over his shoulder, and walked back to the pool, planning on having an even better time cleaning Ohnoki's muscular and firm body.

As his hands smoothed over Ohnoki's muscular body, grabbed his cock and pumped it a few times just to see the pre-come leak out, and played with the older man's body, the Raikage realized he had yet to actually enter his ass. Ay's expression turned regretfull, and he promised himself that, as soon as Ohnoki woke up, he would recitify that.
And so, to Ohnoki's horror, when he woke up, his ass was already being pounded by Ay, and his body felt wet with fresh come. The 80-year old could only sob helplessly and come over and over again as the sensations took over his body and devoured his mind.
4 hours later, Ay sat next to Ohnoki's limp, barely conscious form and absently mindedly petted a come-covered pectoral. Every once in a while, a weak, reluctant moan would suddenly burst from the older male along with a bit of pre-come, and Ay would lift the Tsuchikage's delectable body up into the air and devour his cock until all the pre-come was gone. And hey, if he happened to come during that time, all the better for Ay.
The Raikage grinned wickedly at Ohnoki's limp, broken body, come leaking out of his ass (not that it was very noticeable, what with the come all over the rest of his body), and twisted his cock suddenly, laughing heartily as the Ohnoki screamed and came once again, his cock only twitching but no come coming out. It was unfortunate, but Ay planned on forcing many, many more orgasms out of Ohnoki. One or two dry fires were fine as long as Ohnoki made up for them eventually.
As Ohnoki lay there, exhausted and come-covered, he weakly lifted his gaze to the Raikage's and was almost uttering a plea when he was suddenly interrupted by his own moan - Ay had just thurst a finger into his ass and struck his prostate directly, and now his cock - once again - stood erect and hard, a bit of pre-come leaking out onto his muscular abs.
Ay sighed. "I suppose I'll have to let you go eventually. You will, after all, need to find a successor." He grinned malevolently at Ohonki, and the older male could only moan as he came once again, resigned to his fate as Ay's personal boy toy.
The next day, Ohnoki selected a new person to become Tsuchikage and made the trip to the Raikage's house. He stood there, his legs shaking slightly from last night's activities, and dreaded the door opening. But eventually it did, and the Raikage took him in and showed him a fucking machine he had ordered just for Ohnoki.
Ohnoki spent the rest of his life as Ay's slut, though the Raikage occasionally shared out his body to other people as a favor or gift. His life became unwanted pleasure and overstimulation, and he died, his body still muscular and firm and come-covered and shining, accentuating the sharp yet soft cyrves of his body, being fucked by a dildo as Ay pet his nipples and whispered dirty things into his year.