The following is the inverse of the serious version of Black Writhing Mass. It's no more adult than anything on Markiplier's channel.
It's very small mostly due to it's silly nature, thus not relying on detail and mostly on dialogue. If you find this amusing and want more, tell me, and I'll consider it. I will not consider a sequel or continuation to the reverse of this story, however. Thank you for reading.
It was just a normal day for Wilfred Warfstache. He was merely going about his normal daily routine.
Rise at the crack of dawn, eat a nice continental breakfast, have a shot of vodka, and then out he went on his normal hobby:
Stalking Slenderman.
However, as per usual, Slendy avoided him and Wilfred was left to gather his diary notes.
Sighing he grabbed a note, tired and wanting to return home. He scrutinized it.
"Markiplier + Me = (======3"
Wilfred crumpled his brow "What is this strange unearthly equation, I cannot make sense of it!" His mustache fluttered in the wind gently.
Finally having had enough he left and did, indeed, return to his home. Slamming open the door he stepped inside- and froze.
"Mark how could you!" Wilfred sobbed.
Before him was Mark licking slenderman's smooth face in a rough estimate of where the mouth ought to be, embraced by a black writhing mass of tentacles extending out of the taller creatures back.
In shock Mark turned, "Wilfred- It's not what it looks like!" Slendy a bit unhappily released his lover who ran over to his flame, who was crumpled on the floor.
Wilfred shook, "Just what am I to you? How many times have we stolen his heroin and had poor, unsatisfactory love?! JUST HOW MANY TIMES HAVE WE SPREAD PEANUT BUTTER ON EACH OTHER AND RULED OVER THE SQUIRRELS?"
Mark shook him, "I still love you- I've been meaning to tell you-" Mark looked backwards at the slenderman who was leaning boredly on a counter, white fingers tapping the surface in a feigned impatience.
"I found the notes you found."
Wilfred sobbed.
"I knew it! I knew his wonderful candor- his neverending lust and loyalty would seduce you! That's while I took them- oh why didn't I destroy them!"
His mustache wiped away his tears.
Mark held Wilfred's chin up and stared directly into the other's eyes.
"His tender words are perfect-"
Another sob wracked the reporter but Mark only continued,
"Just like you."
Wilfred sniffled.
"Do you mean it?"
Mark nodded. Wilfred's mustache gently caressed the side of Marks face as they locked in embrace.
They broke apart and Mark look in slender's direction. Mark smiled.
"Senpai noticed."