Mammon x Reader [lemon]

Ｍｏｖｉｅ Ｎｉｇｈｔ

A/N: My Mammon doodles above :3

It's been quite a while since you came to initiate your one year at the Devildom academy for the exchange program(where two humans were selected to spend one year at the academy full of demons) and living in the House Of Lamentations where it lives the seven brothers, every one of them representing a deadly sin, Mammon being your 'bodyguard'(totally against his will) and also being a big of a asshole all the time. You talked to one of the demon brothers, the third oldest brother: Leviathan, he was really pissed at Mammon because he owed him a lot of money or something, so he tried to convince you to make a pact with Mammon for his benefit, but you're actually winning on this too, by making a pact with a demon (also it can be made with anything valuable/worth it for the demon, doesn't need to be specifically your soul in exchange) he'll have to do everything that you says even if he doesn't want to, so you decided to agree.

 After talking with Levi and agreeing to make a pact with Mammon, you two started to make a strategical plan of getting something that Mamoon would do everything just to have it(for exchange to the pact, actually), and that was his girlf- i mean his credit card (that boi surely is greedy). When you got your hands on the credit card Mammon appears from nowhere scaring the shit out of you and Levi.

 Mammon: T-That thing in your hand, is it my baby Goldie? Why you have it? GIVE ME BACK.

 Levi: You're going to make a pact with this human, then you can have it back.

 Reluctantly Mammon accepted to make a pact with you, because it's all about his precious Goldie we're talking about and his future days were planned to be a pain in the ass for him and you as well.

 You and Mammon were walking to class peacefully at least for a change, until you two hear some assholes gossiping about a 'stupid demon(aka Mammon) that fell for a human's trick and ended up making a pact with her' and Mammon got really triggered.

 Mammon: listen, i'm only doing this for my Goldie 'cause you're fucking annoying and i really can't stand being near a silly human like you. -He started to walk away from you in a fast pace, hoping you couldn't follow him.

 You: Mammon, come back right now. -In a split of second he turned back and walked towards you.

 Mammon: W-wait what's going on....shit, this damn pact. -Yes, you're very powerful over him and he couldn't do anything about it.

 After this, Mammon just continued to be annoying like always while walking to class. When the class was over, Mammon got out really fast and you went to talk with Lucifer, he congratulated you about your pact with Mammon even when it's been nearly a week since you got in the academy, Diavolo congratulated you as well and you came back to your room proud as ever. You had a wonderful night of sleep, so you got up and went to eat breakfast, getting face to face with Mammon who was already there.

[...]

 Mammon: Why do i have to eat breakfast with you? This exchange program sucks, usually i would be the one eating you if it weren't for this.

 You: You know this is dirty, right?

 Mammon: I don't care i'm a demon goddamit, i could literally eat you right now.

 You: Except that you can't.

 Mammon: You don't know shit human, you're not my fucking boss.

 You: Of course, a boss is too scary and it's only of Lucifer that you're scared.

 Mammon: ME? SCARED OF LUCIFER? YOU'RE KIDDING ME RIGHT BITCH?

 When Mammon raised his voice, you angrily grabbed him by his collar putting him close enough so he could hear your breathing clearly.