Trans Mark Grayson
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Atonement by Blueberries_Pen
Fandoms: Invincible (Image Comics), Invincible (Cartoon 2021)
05 Jul 2021
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"You want to die for this planet? Fine! What's seventeen more years? I can always start again. Make another kid. And you're going to help me, Mark. Willingly or not."
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"Do you wanna..?" She implies, lust in her eyes.
Mark blinks at her, before blushing. "Ah- uh- well-"
Eve's eyes widen, "It's okay if it's too early!" She quickly reassures.
"No, no, that's, uhm, not... it."
Her head tilts, "I'm, uh..." he begins, "Different. From... most guys."
This time, it's Eve's turn to blink. "Do you have like... alien dick?"
Or, Eve and Mark's second date is going good! Well, it was going good, until Eve wants to have sex, and Mark has to explain that he isn't like most guy's.
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“Hey, don't hog him now.” The masked Mark was next to Rex in an instant, gripping his chin and making Rex look at him. “He offered himself to all of us.”
He did. Rex absolutely did. Not only was it a way to save his life, but hopefully give the others some time to save citizens and get their shit together to take down these fucks once and for all. Slowly but surely, the rest of the Marks began to surround him minus Omni Mark, who stayed put in where he was but kept his head down, a small tint of red creeping on his pale face.
“Well, Rex,” gold Mark crept forward one last time, face inches from Rex’s, “can you really take all of us?”
Here goes nothing. Rex gulped.
“You fucking bet I can.”
“I see. Have at it boys.”
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“Mark… it’s time we talk about something important.” He explains, his deep voice soft and slow, just loud enough for Mark to hear. “I’ve told you a bit about our culture, about Viltrum, haven’t I?”
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Mark, or, maybe not really Mark, is flying in the sky above them before he stops mid-air. He stares directly at William, meeting his gaze and holding it for an agonising few seconds as he slowly, slowly hovers lower and lower to the ground. The moment his feet touch the rubble a few metres in front of him, he’s suddenly face to face with him.
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Mark is still perceived as a relatively normal, human man on Earth. Humans don’t have secondary genders, they have no heightened senses to pick up on pheromones or detect heats or ruts. So, Mark has spent all of his heats alone.
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Rex got lucky. Super lucky. If seven years ago you told him he would find the love of his life while fighting a bunch of Flaxans in the middle of Chicago and have constant pinning competitions with him until you had your first kiss on top of the Eiffel Tower like a random love story rom-com, he definitely would have laughed in your face and then gone out to eat pizza.
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Aka girl dads Rex and Mark
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Mohawk-Mark suggests playing truth or dare and things quickly get out of hand.
Series
- Part 5 of Disasters with the variants.
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The Two Terrible Truths That Will Tear my World Apart by Isobelle_The_Ottergirl
Fandoms: Invincible (Cartoon 2021)
20 Apr 2025
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Mark... or Jenny, or whatever the hell name she decides to go with, is pretty damn certain she wants to be a girl. Unfortunately, she also has a crush on her extremely gay best friend, William. Faced with the struggle of being iced out of a potential relationship if she comes out, she struggles with how to break the news to him. How will he react when he finds out the two truths that, when added together, threaten to tear her world apart?
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All my MarkCil fanart to this day <3
Follow me on instagram @unfruitpourri for more nsfw and @unfruitenhiver for regular art
I won't accept your follow request without knowing your age so make sure you put it in your bio or dm me first !
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Omni-Mark doesn't like cursing. Shiesty-Mark curses anyways, it's in his blood. What was the variant even gonna do about it?
...Well, getting ate out and fucked was the last thing he expected.
tldr; omnithug t4t porn
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Cecil has one day off a year. He usually locks himself in his house on that day, drinks tea and plays old songs from the 70s, from when he was a kid and still interested in having fun. He makes a lot of calls to work when the sleeping pill wears off, more than anyone should call on his day off, just to make sure that in 24 hours the world has managed without him. That's what happens when you're a workaholic who only gets one day off a year by choice. However, this year's day off has something in particular, something that makes it interesting.
Mark Grayson is in his house, wearing a tiny dress.
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Barks, then mewls by kimcavoy
Fandoms: Invincible (Cartoon 2021), Invincible (Image Comics)
14 Jun 2025
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It's okay. Cecil is a professional, he's a grown man, a trained government agent who's almost a senior citizen. He can handle this. But why couldn't Mark be a cat like him? It would have been easier.
There is a good way, and a bad way to train a puppy. Cecil is no expert, but internally he organizes his own list.
Number one: You have to be firm with him. Dogs are uncontrolled, wild, playful creatures that all the time want to be in control, but you must have control over them with a firm leash.
Number two: You have to give them treats. Just as they need a strong character, they're so clumsy and sensitive that they require constant stimulation. Give your puppy rewards to indicate when he's doing a good job, and discover the fruits of that good behavior when he begs for praise and treats.
And number three: Fuck your puppy hard, dirty, and properly until you have him cumming all over the blankets saying he can't take it anymore. Of course this last point is reserved for him, for the personal care of his puppy, Mark Grayson.
Or, Invincible, and everything is the same, except that Mark is a dog and Cecil is a cat.
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All organic, viltrumite made! by Fae908
Fandoms: Invincible (Cartoon 2021), Invincible (Image Comics)
04 Jun 2025
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In which being an alien hybrid, no matter how comapitable the two species DNA is, sadly comes back to bite Mark is the ass.
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It shouldn't feel like this by kimcavoy
Fandoms: Invincible (Cartoon 2021), Invincible (Image Comics)
19 Jun 2025
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This shouldn't have happened. Cecil is in front of him, which is not unusual, as he's his boss. And what can he do? Cecil will know if he's telling the truth or not, and if this Cecil is anything like his own, then he knows he's a persistent bastard. This was a younger version of Cecil, a really attractive one. With a sigh, he gives up, and as he speaks, he can't control the blush spreading across his cheeks.
"We're lovers."
Mark had traveled back in time, and he was standing in front of a 40-year-old Cecil.
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Choking on Work by kimcavoy
Fandoms: Invincible (Cartoon 2021), Invincible (Image Comics)
26 Jun 2025
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It's hard to get old things to turn on. Sometimes you need something soft and firm, like soft hands around it, or a warm mouth hidden behind a desk while you try not to get caught.
Or: Mark is horny and gives Cecil a blowjob when Donald interrupts them, but that doesn't stop him.
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Cecil fucks Debbie. To get back at him, Mark fucks Cecil's New Guardians of the Globe. woohoo polyamory
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One would think that aging out of nowhere would be every teenage boy's nightmare. At the same time, one would think that physically rejuvenating more than thirty years would be every elderly man's dream. Well, not for Cecil.
Or: Cecil and Mark swap ages and discover how this changes their dynamic through sex.
Bookmarks which have used it as a tag:
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Mark gets his cheeks clapped by Conquest.
Miner character Oliver hes there for like 3 seconds then pisses off (he dont see nothing)
Work of fiction shit like this should never happen in real life.