It was a very stormy day on Mt Gagazet when Biran decided to have a bit of training.  He didn't really mind it when he went to his little training place. 
There were were a bunch of loose rocks,  small ones that could be punched into thousands of pieces and big ones that could be heaved up for training the muscles. 

Hours went on in which Biran was training without a break.  He was really into it and didn't realize that the storm started to get stronger until it started to become a heavy blizzard. 
He started to walk, trying to get back home but he realized very fast that it was pointless.  Of course he couldn't stay outside and so he searched for a save place. 
Biran didn't had to search too long and found a cave, entering very quickly.  He didn't even check what kind of cave it was and so he was surprised to hear a very familiar voice. 
"B-biran?!"
He turned his head to see the source of the voice,  not liking what he saw. 
"What is Kimahri doing here?! "
"Biran entering Kimahri home and then asking what Kimahri is doing here? "
Biran raised an eyebrow and looked at the other ronso who sat in front of a fire. 
"Kimahri's home? " he then saw something next to Kimahri. 
"What's that? " Biran came closer and took it.
It came out to be a tin but Biran was confused by the word "beans" written on it. 
"Kimahri saw travelers hiding it in other cave.  Travelers killed by monsters,  Kimahri took tins and bottles "
He was pointing at a bunch of tins and bottles that stood in a corner.  At this moment Biran already opened the tin with ease, using his claws for that.  He sniffed the content before he put his finger into the substance just for licking it up afterwards.  It didn't seem to be poisoned nor did it taste horrible,  which was an good enough for him to swallow the entire beans down,  burping loudly afterwards. 
Kimahri didn't like it very much that Biran just ate his food but he didn't say something,  just going to the mountain of tins and bottles and grabbing another package of beans. 
Biran saw that and snapped it away. 
"Biran's food now,  Kimahri not taking any of that! "
"Hey, Biran can't do this.  Kimahri found and so Kimahri eats! "
"Biran sure that told Kimahri to stay away from Biran's food! "
Biran got into a threateningly position,  making clear how serious he was.  Kimahri knew it was hopeless and so he went a bit away. 
"But Kimahri is hungry too... "
Biran was swallowing two portions in no time "Biran had training so Biran deserves food.  Little Kimahri did nothing,  not deserving anything! "
After a bunch more of beans he took one of the bottles that said "soda" . Of course he opened it and drank the 2 liters at once. 

10 minutes went on until Biran ate 46 cans of beans and drank 15 litres of soda. 
Kimahri looked at him with wide eyes,  unable to believe what he just did. 
"Aww, nothing left for Kimahri? Biran doesn't feel sorry! " he burped loudly,  petting his belly 
Kimahri was angry but knowing he wouldn't have a chance against Biran he didn't do much more than growling. 
"Biran leaving now! "
He was just smiling and slowly walked to the exit "Nothing to do for Biran here anyway. Biran ju-"
Biran was interrupted by a loud rumbling sound from outside and only a moment later an avalanche blocked the cave,  trapping the both inside. 

An hour went on and Biran did his best to show how superior he is.  Finally he lost the interest and sat down on a rock while Kimahri laid next to the fire place, that was now completely cold.
He wasn't moving and soon fell asleep. 
Biran however wasn't able to calm down, he felt a giant pressure building up. He concluded that drinking that much water will burst your bladder but he felt another kind of pressure too. 
He knew very fast what kind it was when he accidentally ripped a very loud fart that lasted for 23 seconds. The noise woke Kimahri up.  He slowly opened his eyes,  not realizing what just happened.  
Biran's fart started to stink up the entire room, so that Kimahri just smelled a little bit of the gas. He thought it was strange and sniffed loudly,  immediately jumping up when the horrible stench of Biran's fart hit him.
Of course it was very funny for him and so he ripped another vile fart, the room filling with the very sulfuric and deadly cloud. Kimahri groaned loudly,  pressing his hands against his nose, looking very disgusted. 
Biran was laughing loudly "Hehehe,  even Biran gas stronger than Kimahri! Don't worry,  Biran's got plenty more!!! "
He was proofing it with another bombastic fart. Kimahri whined,  trying to breath only when it was really necessary. "W-why is Biran gas s-so bad? "

Biran kept farting a bit longer until the smell overpowered even his own nose.
He stood up and walked to Kimahri who got on his knees a moment ago. 
"Biran gotta piss, where's Kimahri toilet? "
"Kimahri going outside,  no toilet.  Biran gotta hold i-"
Biran suddenly walked into a corner of the cave,  a blanket and a pillow told him that it had to be Kimahri's sleeping place.  He took it and threw them against the wall before he grabbed his dick, pointing it at the wall. 
"When Biran can't piss in toilet then Biran will just use Kimahri bed! "
Kimahri was suddenly standing up and went behind Biran,  grabbing his shoulders. That surprised him "What's Kimahri do-oooooooo..."
He couldn't hold back the urine anymore and started to pee in a massive stream,  the relief relaxing him. 
The urine splashed against the stone wall unit Biran moved it down to the pillow and the blanket. The textiles immediately soaked up the urine and turned into a dark and very intensive yellow. 
Biran sighed loudly in relief, enjoying the strong smell of his urine. 

Kimahri wasn't very amused about it. He came up with an idea and grinned widely when he grabbed his dick. 
A moment later Biran felt something wet and very warm on his back. He already had a clue what it was and turned his head to Kimahri,  only to be greeted by a strong stream of urine that hit his face. 
"Kimahri thought Biran had something in his face... " he had a very cocky grin and aimed for the back again. 
Biran growled very loudly,  totally hating it. 
"Aww, Biran looks a bit pissed. "
That was enough for Biran and he rushed to Kimahri,  pushing him down and pinning him on the ground. 
He surely was angry but instead of punching him he aimed his dick at Kimahri's face. He didn't even mind that Kimahri peed onto his chest.
Kimahri surely didn't enjoy it and tried to stop Biran but he couldn't move even  a tiny bit. There was only one way he could try. 

The ronso grunted before a long SBD erupted from his rear end.  Biran's farts were bad already after his lunch but Kimahri's were extremely stinky by nature and he was totally aware of it. 
Biran didn't realize it at first but then he got hit by the stench,  immediately pressing his paws against his nose. 
"Kimahri complaining about Biran gas? Kimahri gas much worse than Biran's!"
Kimahri grinned widely as he ripped another long and bassy fart. A very rotten stench filled the air and made Biran coughing. 
"Now Kimahri is showing Biran his place! "
He surprised Biran by pushing him away so that he was laying on his back, not wasting any time Kimahri sat down on Biran's face. 
Of course Biran tried to fight against it but he couldn't move even a bit before... 
FRRRRRRRRRRRNNNNNNNNNNNNT 
"Ahhhh, Kimahri got plenty more for Biran face " FLLLLLUUUUUURB 
Biran struggled wildly,  trying to get Kimahri off from his face. He suffered from the stench and wanted to get away.  He was shocked when he heard a loud gurgling sound. 
"He he, Kimahri was holding this one back for ages,  now Biran is judging intensity of Kimahri fart! "
Biran flailed around but it didn't help him.  An extremely hot fart erupted from Kimahri's rear,  pushing an extremely pungent stench into Biran's lungs.  It smelled like meat that was spoiling for a long time. 
After 30 seconds the fart ended and Kimahri stood up,  proud of his work. 
Biran was still awake but way too weak to stand up,  of course Kimahri wanted to use the situation. 
He grabbed Biran's hips to turn him around and revealed his ass. Biran growled loudly but couldn't do something against it 
Kimahri chuckled when he started to rub his crotch against Biran's ass until he started to get hard.  He had a very wide grin when he started to push his dick into Biran's ass.  Of course he didn't like it and so he tried to stand up again,  succeeding to get on his knees. Kimahri quickly reacted by farting again,  waving it to Biran by using his tail.  Biran's new strength was blown away immediately. 
Kimahri now was able to push his full length in. 
"Biran is very tight,  Kimahri loves it! " he slowly started to take Biran from behind. 
Biran blushed heavily, he usually is the dominant person and finding himself in this position was very embarrassing for him. 
Kimahri started to add some extra torture and now started to rip a fart whenever he thrusted into Biran's ass. 
The air was soon nothing but a toxic fart cloud. 
Kimahri slowly reached his full speed,  huffing every time. It didn't need much time for him to empty his load into Biran.
Just a moment later he passed out from Kimahri's farts.