Rumor Mill (слэш)

Erik is the grumpiest, most foul tempered worker at Stark industries. His grumpiness is the stuff of legends.
So it's obviously the talk of the office when Erik is being made to go to the company party and he's bringing his husband. There's rumors flying round about how much of a masochist or equally antisocial bastard Erik's husband must be to put up with him. Others think he must be a meek mouse perhaps bullied by Erik.
What they weren't expecting was the confident, charming, adorable and unbelievably nice Charles that turns up on Erik's arm. What they certainly weren't expecting was how much Erik obviously adores his husband and how happy he is to let others see this.
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Based on a prompt from the kink meme.