Trans Black Legionnaire going stealth, making a deal with a Daemon so nobody remembers he's trans. He got bottom surgery from a very talented Heretek and it's like if he was born with a dick and balls.
One day he discovers someone has been distributing erotic art of a Black Legionnaire who looks suspiciously like him, but with a pussy.
He panics, asking the Daemon how the hell this happened. The Daemon shrugs and says, people have wild imaginations.
And also in this picture your colleague who was definitely not born with a pussy is scissoring you.
(sadly, many Chaos cultists are disappointed when they find out the Black Legionnaire is just A Dude in armor and not a monster boyfriend. Fangs and pointy ears don't count. Neither do Space Marine superfeatures. So they draw him having armor-on sex.)
(He has definitely had armor-on sex, often with the help of Chaos Spawn who act as living strap ons. It's convenient for appeasing terminally ill maidens who made a wish to fuck a Space Marine before they die but get upset when the monster boyfriend sent to ravish then is Just A Guy.)
(He can actually turn into a monster but has poor control of when this happens and how many limbs and heads he will have. Not that his fans would mind the extra parts, but he's afraid of turning into a goofy looking pile of goo or a fuzzy worm version of himself by mistake - imagine the ridicule!)
And look at all the art where you're wearing nothing but your helmet. You have top surgery scars in it but you never got top surgery. It's all a big coincidence.
The Daemon adds that nowadays, plenty of Chaos Marines got pussies gifted by the Gods. Nurgle loves to gift his Plague Marines with fertility. It's not that big of a deal.
But the Black Legionnaire has a lot of trauma tied to having a pussy and other people knowing he has one. He goes back and forth with the Daemon, gushing insecurity.
In the end, the Daemon advises him to not kill the artist and suppress the work. Like a king killing a jester who made a joke about his sexual potency, it would raise more suspicion than if he made a nonchalant public comment about adoring fans with wild imaginations.
Later, the Black Legionnaire promotes an ex-Iron Warrior to "guardian of the keep" and the shippers go wild.
The ex-Iron Warrior was callously abandoned by his warband when he was Injured, and generously "saved" by their handsome big-dicked warleader, who showed him True Brotherhood and a fortress that was colorful and welcoming. The humans find the story to be so romantic.
The ex-Iron Warrior finds the RPF of him and his boss and asks "why do they always make me a bottom with a vagina."
His boss is so alpha and dominant that he is rarely portrayed as the submissive bottom in the relationship (and the boss prefers it that way). But the Iron Warrior gets headcanoned with "Imperial Fist geneseed pussy" despite being made with Ultramarines or Dark Angels stock.
His geneseed is nobody's business! That was how the boss pitched joining the Black Legion to him. He is soooo tempted to post the results of a genetic test just to prove the shippers wrong.
His boss tells him to cheer up. At least most people don't know what he looks like under his helmet. That's why Space Marines wear helmets. The ex-Iron Warrior is really never going to take his armor off now.
Things spice up when the boss marries an actual Imperial Fist. Poor wifey may get maligned by shippers for getting in the way of their OTP...especially if they're a girl Space Marine.
