You push Leviathan to the ground, caging him with your arms kabedon-ing him. Then the words start to fall.
“You are a worthless waste of space and a disgusting freak.”
He can sense a mix of anger and disgust in your words, the frown on your face gets deeper as you keep talking to him. Leviathan takes silently everything you tell him, listening to every insult with his eyes closed and his pants slid down his thighs.
“The only reason I talked to you was because I felt sorry for you.”
“I know otakus have a reputation of being lame but you really took it like it’s your job.”
“You are a burden to everyone who meets you, whether that's in-game or in person.”
You can see the shudder in his body, and how his chest rises and falls with writhing gasps.
“You are such a loser even your name starts with an ‘L’.”
A wet patch of precum forms on his underwear and you are sure it would be sliding down his cock had he taken his undergarment off.
“I have to take a shower after kissing you because just touching you makes me sick.”
A gasp elicits from his mouth and he feels his breathing short of stopping.
“My life was better when I didn't know you.”
A broken whimper, his voice is the quietest you have ever heard it.
“Red.”
Then everything stills.
Your fingers touch the tips of his, touching him just enough to give him space while letting him know you stay close. When his fingers wrap around your hand to give it a squeeze, that's when you take it as your cue to hold him; extremely observant of how he reacts at your touch.
Once his breathing has slowed down you kiss his temple while you rub soothing circles on his arm. “How are you feeling?”
“You really think that about me?”
Your eyes widen, “What? Of course not! See,” stretching your arm to retrieve a notebook with scribbles on it, you hand it to him. “I listed everything I liked about you and turned it into their evil versions.”
He reads the line where you wrote the thought process of what you had told him: «W boyfriend → L boyfriend ; L–eviathan»
He laughs bitterly at the thought that you had put so much thought into this and he ruined it by letting it get to him, “That one was kind of funny though.”
“You think so? I had a couple more left and if you still wanted more I was planning to spit on you—” “Ngh.”
Oh, crap, he didn't moan in his mind.
“Levi?” He turns to hide his face in your neck, the thought of looking at you in the eye too much to bare. “It's not that I didn't like it at first and I appreciate that you did this for me.”
“But the last two... Those were too much, I think.”
You whisper a soft ‘Noted’ before scratching the mean sentences he didn't like off your list and tossing the notebook elsewhere.
“You know why I told you those?” You subtly maneuver around him, so he is laying once again on the soft cushions. His mind tries to tell him it's because it's how you really feel about him and that's why he doesn't answer you; saying that out loud would make it too real, it would be a confirmation of every self doubt he has.
“It's because every day I think of how lucky I am that I met you and even after all the time we have been together I still get giddy when you kiss me or hug me or we link fingers.” Your words make him blush intensely and Leviathan tries to hide it by covering his face with his arm but you won't let that happen.
You kiss him where you can: his temple, his forehead, his other temple. Just a few kisses that distract him enough for you to pull his arm down and carefully cradle his face in your hands.
You kiss his forehead once again, then the tip of his nose, then each of his cheeks and finally you kiss his lips, giving them a soft peck until you feel him smiling into the kiss.
“Now if you let me, I want to let you know you everything I like about you and how much I love you.” You start undressing yourself, taking your top off first and making his cock twitch again in his pants.
You don't need a notebook for the praises you are going to whisper against his skin. You can just speak from the heart.
BONUS
Your fingers play with his bangs, “Are you feeling better?” Leviathan nods and the soft smile he gives you lets you know he is feeling better. “Can you do the spitting thing another time? In my mouth?”
“Sure! Want me to surprise you or will you let me know when you want me to do that?”
“Surprise me, I think that—” Ptui
Throwing his head back, he moans when he feels your spit on his tongue. Another moan, this one even louder goes past his mouth when he licks his lips and can feel it on his bottom lip, his tail wagging in excitement as he hides his face in your chest—When exactly had he turned into his demon form?