I loved the angst, so I came asking about the cheating headcanon but reversed. The boys (Lucifer, Mammon, Satan and Asmo) cheating on the MC! Love your writing! 💖
Lucifer
Lucifer recently had gotten into a relationship with you. It was... well.
It's not like you were annoying or he was bored. Really you didn't do anything bad. Sure Mammon would get you into his shenanigans but overall, you were fine. Diavolo just noticed you had a crush on his dear friend Lucifer, so he told Luci to give you a chance.
"Think of it as extended research for our program," words from his boss ringed in his head.
And now today was a special day. Diavolo was hosting a celebration for the 1 year mark of the exchange programs success (lets say you stayed lol), and of course you and the brothers were invited.
You stayed with Lucifer but it seemed tense and awkward, so you excused yourself and headed off to go dance with some demons you befriended. And Lucifer went off on his own to get a drink or two.
Now there he was, one thing lead to another and now he's tipsy and making out with some demon in a closet. And it was intense. His buttoned shirt opened, hair is a mess, he has some teeth marks on the demons chest.
You on the other hand, returned from dancing and noticed Lucifer was gone. Levi, having not left the table the entire night, mentioned that his brother went to the bar. The bartender mentioned he got approached by someone and they headed towards a hallway.
So on your quest to find Lucifer, you heard moans coming from the hallway the bartender pointed towards. Opening a door to some closet, you spotted your boyfriend making out with some demon who stared at you. Lucifer now realizing what he'd done pulled himself away. "MC, give me a second to explain myself."
You slammed the door and ran to the nearest bathroom to cry all your tears away. What have you ever done to him?
Mammon
You and Mammon were currently in an on-and-off relationship. Right now, on.
This really was never meant to happen. You just both seem to break it off whenever the slightest inconvenience happens. It's been rocky but you two can't get enough of each other.
So today at school, you mentioned to Mammon that you'd be staying for tutoring and asked him to wait for you. That it wouldn't take long.
He begrudgingly agreed and decided to sneak around campus to find something to steal. That's when he got taken by the collar into an empty classroom. First he thought it was Lucifer and he was going to get a beating. Then the hands felt small so possibly you? Maybe you got out early or you were planning a surprise but he didn't see you?
"Finally, you're alone." The voice seemed to not match how you sounded so of course he got scared. "Wh-who do you think you are touching the GREAT Mammon?"
This demon decided to lean up closer to him and start feeling him. "Why keep going back to that human? They're going to leave anyway, come to me and I'll be there for you forever." They whispered, smashing their lips against the second born.
And at that moment, you got out of your after school tutoring session and began looking for your boyfriend. Hearing the loud voice he does when he calls himself great, you found where the voice came from. You opened the door and turned on the lights of the classroom to find Mammon, with a demon sitting on his lap and making out with him.
Attention turned to you as you processed what the hell was going on. You left running back to the House of Lamentation, tears down your face. Then Mammon began to cry. "W-wait! MC! Please!" He pushed the demon off, and began running after you.
Satan
Satan was probably the slyest of his brothers. He knew a lot of people, got invited to different events everywhere, he even had a couple of fans. Really he had an entire secret life no one really knew about unless you were him.
You knew he had more to him than just him staying at home with a book, but what you didn't know is that you were not the only one that has captured his eyes.
He was gone for this "meeting" he had in some fancy restaurant. He told you this prior and told you that he'll be back later and to not worry for him. That he'll see you before you both went to sleep. And of course, you kissed him and told him and you'll wait for him.
Well, that same day, Levi pestered you on about how this game came out with exclusive content on in-store locations and begged you to go buy it with him. Of course you agreed, as you had nothing planned that day.
Once the game was bought, Levi was going on about the content and what the game was about until you looked ahead of you and saw someone that looked a lot like Satan, dressed in the exact outfit Satan had on, standing outside an apartment with some demon holding his hand.
There you stopped walking and Levi stopped as well, noticing your reaction. You pointed to where Satan was standing, Levi following your finger. The two of you saw Satan leaning down to give the demon kisses. Multiple. Covering the others face, the same way he'd kiss you when he hasn't seen you all day.
As soon as the demon went inside their building, Satan turned to see you standing there beside his brother. The two of you sharing the same facial expressions. Shock and hurting. He started walking towards you, "I can expl-"
"MC, we need to go." Levi grabbed your hand and headed off in a different direction.
Back at home, Levi locked his door, placing his headphones on your ears to block out Satan standing outside his door, banging to let him inside. Meanwhile, Levi was trying his best to console you.
Asmodeus
We all knew Asmo was rather popular. First you didn't mind, as you found it rather charming. Then as soon as you got into a relationship, he seemed to have started getting more attention from others.
At school, he'd flirt with other demons. But he'd always mention that he was dating you as he declined dates and hook ups. After school, he was the exact same. Except he'd lead others on more whenever you weren't there or if it was somewhere outside of school.
He decided that he was bored and wanted to take you out clubbing with him. You agreed as you had no plans either. He dolled you up and he dolled himself up. Now the two of you were in matching outfits.
Now once the two of you were at the club, he got you to grind on him, drink shots with him, just overall go crazy with him. You told him you were going to the bathroom to fix your makeup cause you knew it was probably a mess. So he let you do you thing.
Now Asmo at the moment was WASTED. He knew he'd regret it in the morning but whatever, he was thriving. He ended up dirty dancing with some demon beside him, somehow thinking it was you. Once this demon turned around to see THE Asmodeus, Avatar of Lust, grinding against her and feeling their vibe, they turned around and started making out with him. And he, thinking he was kissing you, made out right back.
Grabbing their ass then grabbing their private areas, one hand sliding up to feel where their nipples were. And then he felt himself getting tugged back, coming face to face with you. The actual you.
You decided to be nice and sober him up. By slapping him. Hard.
That woke him up as he finally saw you and turned back around to see the demon they were just about to fuck in the middle of the club. He pushed them away to the side and turned back at you, trying to grab your hands. But you pulled them away. Another slap to his face and you stormed off, feeling hurt Asmo just drank his entire night away. Leaving you lonely and now single.













