So Mario gets amnesia also he's part Sylveon in this because reasons.
Anyways his squad (Peach, Sonic, and Tails.) (Peach is part-Sylveon like Mario, Sonic is a shiny shaymin, and Tails is a ninetales but with two big tails instead of 9 tails. So like, a twotales.) gets captured by a dumbass jester growlithe, and Mario has to save them.
Luigi also has amnesia, and Dimentio (who's a growlithe in this.) takes advantage of that, looking to make Luigi the splitting image of the very dead Mr. L.
(also Luigi's part dusk lycanroc in this)
Dimentio however, is too much of a fuckin dumbass to even tell Not-L what he's supposed to do, or even what his 'name' is. He just chucks Luigi into the boss room, and then fucks off.
Probably to go wank or somethinAnyways, Mario kicks some ass all the way to the boss room, where he meets...a familiar looking person. Like, very familiar. Like, "If-I-didn't-have-fucking-amnesia-I-would've-called-out-their-name" familiar. "I will die for this person" bonds ensure rather fuckin quickly.
Meanwhile, a familiar looking part-Sylveon just ran into the room Not-L's in.
Yes, Dimentio is the dumbass jester growlithe who kidnapped Mario's squad. Fuck you, Dimentio.
Anyways, the two bond pretty quickly, get through a room of traps Dimentio set just in case Mario actually had the guts to kick his own brother's ass.
And then the squad cheers since Mario came to save them. And then they freeze after noticing who's with him.
"He's been-" Peach begins to mutter under her breath, before looking Not-L in the eyes. His blue eyes.
She gets up, and gently takes off Luigi's mask, then steps back.
"W-Why are you...nice to me?"
Luigi fearfully asks, before gently holding his arm with his hand, and looking down.cue loud gasp. And Peach giving Luigi the mask back, and of course Luigi puts it back on.
They go home, Peach explains Mario & Luigi's relation to each other. Sonic overhears and goes "They're twins?!"
Luigi wears the Mr. L outfit during the day but changes into thunderbolt pjs at night.Life is good.
Hey, wait, remember that thing with Dusks?
You know, when their eyes turn red?
Luigi has a variant of that.Perhaps L isn't so dead after all....
(Also this isn't Mariocest, sadly. I do have a 'Classic' Mariocest Mario/Marapets crossover I'm working on however. Also I'm writing an MLcest (M x L) oneshot. Don't know when I'll be finished.)