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To set the scene Sherlock is doing some experiment with Graham and Mycroft... spawns or something. It was another normal day in Baker Street, well as normal as it can be when Sherlock doesn't have a case, so he's 'testing the agility' of Graham in the sink, totally normal day in Baker street. Until Sherlock heard booming footsteps and a voice he would recognise instantly, fuck of course it's MYCROFT (OOOOOHH SCARY) !!!
"Hello Sherly sausage! How was that last ad-... Sherlock. why are you doing with a rodent... do I need to call the rodent guy?" Mycroft says bursting into the flat and looking over Sherlock's shoulder.
"The fuck are you doing here? and this is not a 'Rodent' it's my pet... his name is Graham!" Sherlock says holding Graham up to Mycroft face smiling.
"Sherlock you can't keep a literal rodent that caused the plague!" Mycroft says stepping away from Graham as quickly as possible trying to avoid 'the plague'.
" I can have whatever I want I have free will!" He says placing Graham into the sink to protect him from Mycroft as he knows what's going to happen.
"Well..." Mycroft says reaching into his pocket eyeing Sherlock with intensity of a cowboy cutscene fight (Cue tumbleweed) " I do keep a spare bottle of mouse poison with me- "
*Sherlock tackles Mycroft and chaos and there are a series of 'Ows' and 'HEY DONT KICK THER-' from the brother before Jonk can break up the fight (unsuccessfully he get a knee to the 'Microphone')*
---- One month later----
in the middle of a 'adventure one day Mycroft knocks on the door to 221B and is greeted by Jonk..
"Hiya Mycroft! How are you?" He says with a smile, though Mycroft notices his hair is slightly messy and he is out of breath.
"Greetings and salutations! where is my brother?" Mycroft asks pushing Jonk (poor Jonk) out of his way.
"Er-UH- in his room, doing a experiment," Jonk stutters.
"Oh okay with the rat? or did it die?" Mycroft asks just then Sherlock appears in a robe ( woahhhh).
"No sorry to say Graham didn't die, look at him all healthy!" Sherlock says pulling Graham out of a pocket and throwing him onto Mycroft's shoulder causing Mycroft to scream like a child and attempting to brush Graham off his body.
"AH WHAT THE FUCK SHERLOCK?" He yells
"Imma go for a walk with Mari and Archie, and leave yall to.. this?" Jonk says picking up Archies leash. Archie runs down at that very moment before barking at Mycroft and Sherlock, why I don't know it's a fan fiction so I can do what I want! " You hear that Archie, Chaos, funnily enough, Chaos killed the dinosaurs!" Jonk says while walking out the flat, as he Shuts the door Mycroft lets out a blood curdling scream, most likely Graham somehow getting into his mouth
So in the end, Mycroft got sick from Graham somehow managing to get into Mycroft's mouth, so that means my slay Kings and queens, and of course my They/themperors, Graham has won the Mycroft Vs Graham world cup 2026 final.