A/N: Last Dark x Jack for now, I swear (you proud PricklyTrash) 

(Seán's P.O.V.)

"I'm really tired Mark. I think I'm gonna head to bed..." I yawn, though I'm faking it. He can't tell though. After all, I'm to innocent to lie, right? That's what Mark thinks... Mark pauses the game and frowns, staring at his watch. 

"But it's, like, seven o'clock!" He protests, looking at me. I shrug, getting up from the couch and turning towards the stairs.

"And I got up at, like, five! So night!" I chuckle, and though he frowns he bids me goodnight before turning back to his game much sadder than before. I know he doesn't like me just disappearing like that and not staying with him until midnight, but there's something else on my mind right now. Or more appropriately, someone. 

I walk into my bedroom quietly, shutting the door loud enough Mark will hear but not doing anything else. I don't want him to know I'm actually still awake, or he'll get suspicious. After I hear nothing but Mark swearing at the game, I smile and turn, staring at him. He looks so much like Mark, but somehow better. I think his red eyes have something to do with it.

I walk over to him, sitting next to him and putting my head on his shoulder as he wraps his arms around me. "Hey Darky." I whisper, and he chuckles, kissing my hair gently. 

"Hey there Jackaboy." He says back, just as quiet. I look at his suit, picking at some loose strands as I notice a couple new stains.

"Did the deal not go like you wanted?" I ask, and he shakes his head, sighing. 

"No, the idiots tried to kill me instead." He says, and I chuckle, smiling softly and closing my eyes as his embrace gets tighter. 

"Well that was their mistake." I whisper and he nods. It's silent between the two of us. A human and a demon, just the two of us. I move my head off his shoulder and onto his chest, listening to his heartbeat. The heart that only beats for me. The heart that is dead and silent unless I'm around. It lulls me closer and closer to sleep, as I just sit there listening to it, comfortable against Dark's chest. And then, he speaks. 

"How do you love me?" He asks then, more of a question to himself then me. I decide to answer anyways, but not before asking my own question. 

"What do you mean?" I ask it quietly, not being able to raise my voice to anything much above a whisper. His grip around me tightens and I look up to see his eyes closed, head hung.

"I mean, you're so perfect you could be an angel walking on this Earth. And yet you love me, a literal demon. How?" He questions it like it's the most puzzling question in this universe, even though the answer is so clear. To me at least.

I pull away from his embrace, taking his hands in mine and he looks at me with those crimson red eyes. "You may have hurt people, and you may have been a bad person, but you aren't anymore. Sure, you kill people, but only those who "deserve" it, per say. The people that probably would've gotten the death penalty back in the day anyways. And you may have done some damage to those I care about, but nothing that wasn't irreversible, and you did it for a reason. And you're you. And that's why I love you. I love you for you." 

By the time I'm finished a small smile is on his lips and he has his one hand on my cheek. With a sigh he moves his hand to the back of my head, playing with my hair. I put my hands around his neck, his other hand goes on my waist.

"I don't deserve you." He whispers lightly, as if any words louder would break us. My smile widens and I put my forehead to his. 

"I don't deserve you." I whisper back, and that's when we kiss. It's a soft kiss, a gentle one filled with all the words neither of us could say. The love that no one else will understand because we can't really understand it ourselves. That love that's so different and so passion filled it shocks me. And then...

"The fuck?" Dark and I part, looking towards the doorway quickly. And there stands Mark, his eyes wide with confusion, shock, and anger. It's silent for a moment before all of the confusion and shock goes away and all that's left is pure fury. "Get the fuck out."

"Mark..."

"Not you! Him! Get the fuck out of my house!" Mark yells at the demon I call mine. Dark stands up, putting his hands up in defense. 

"Mark, listen, I know you're upset. Just let Seán and I explain." Dark tries but Mark isn't gonna hear any of it. 

"Get. The. Fuck. Out." He says, pulling out a knife from his pocket. I notice the inscriptions on the handle, and Dark does as well, backing away slightly. 

"Mark! Calm down!" I yell but he doesn't pay attention to me, he just inches closer to Dark. With one last look at me however, Dark teleports away, not wanting to take any chances. And as soon as he's gone Mark is storming out of the room muttering curses. I'm quickly on his tail. "What the fuck was that?!" 

"He's using you Seán, that's all he's doing. I'm just doing this for you." He says, walking into his room and digging through a drawer to get out many dream catchers. Or more appropriately, "Dark Repellent". He hangs one on the window before going around the house, putting them on windows and the front and back door. 

"No he's not! If you let us explain you wou-" He doesn't even let me finish as he continues going around the house. 

"He can't love you Seán! He's a fucking demon! A social manipulator! I'm just trying to protect you!" He snaps, staring at me before turning back around and heading to my room. I follow him into my room and I raise my arms in frustration.

"He loves me Mark!" 

"No he does not!" He yells back as he puts not only a dream catcher, but bars over my window. 

"Yes he does and I love him too!" He freezes, visibly tensing. Then he turns and looks at me, done putting up the metal bars. 

"Damn it..." He whispers before storming past me and closing the bedroom door. It isn't until I hear a lock that I panic.

"Mark! What the fuck are you doing! Let me out!" I scream, pounding my fist on the door.

"No Seán! This is for the best!" He says, as I continue begging him to let me out. This is my house too! I don't deserve to be on fucking house arrest because of this! But I know it's hopeless as I hear Mark walk away, undoubtedly to confront Dark. God damn it I hope he doesn't do anything stupid....

***

(Mark's P.O.V.)

Dark managed to get Seán to fall in love with him... I knew he was good, but not that good. And why? Why would he want to use Seán and get inside his head? There's no reason for it, other then to mess with me but even that seems a little to petty for Dark. There must be some other reason, something else making this worth while for him. Because he doesn't do anything unless it benefits him...

I walk into the park with a sigh, staring at my watch. It's almost eleven. The stars are bright in the sky above, and no one else is in the park at this late hour. I wouldn't expect anyone to be, which is why I'm here. Why we always meet here if I need to confront him. And sure enough, I notice the black cloud of smoke appear.

"Dark." I spit out bitterly as he shows himself, still wearing his suit from earlier with his hands clasped behind his back. 

"Mark. I noticed you put up those pesky dream catchers." He says and I shrug, putting my hand in my pocket and wrapping my fingers around the knife (just in case). 

"I don't want you to get Seán." 

"If you just let us explain-"

"What do you want with him?" Dark seems taken aback by my words, freezing up for a second before chuckling, shaking his head. 

"I don't want anything with him. I love him."

"Drop the act." I groan, pulling out the knife and flicking it open. "He isn't around and I don't buy your mind tricks. So what the fuck do you want with him?" 

He says nothing, he just shakes his head and mutters something under his breath. It's silent between the two of us, me standing there with the only weapon to kill him, and him standing there with a blank expression. 

"You say you love him, but if I asked you what love is would you be able to answer?" He chuckles, looking at the ground. Then he shakes his head, sighing, before looking back at me.

"No. Probably not. But would you?"

"Yes. Or I could at least do a decent job." I say and he shrugs, shaking his head.

"Just because I'm a demon doesn't mean I can't love." Well that's a load of bullshit.

"Go back to hell." Is what I state next, making him shake his head and laugh.

"No." He defies, eyes burning red. I raise the knife a small bit. 

"Go back to hell, where you belong! Away from me! Away from Seán. You have no reason to be up here." I say, stepping closer. He takes a step back, raising his arms slightly.

"Seán is why I stay here! I love him! He loves me! If you can't understand that that is your own damn problem!" He yells at me, and Dark rarely yells. I scowl, breathing slowly so I don't do something brash. 

"Go to hell. Just go to hell, and leave us alone. You are not getting back to Seán." I say with a bitter tone, making sure I'm clear. And after a moments hesitation, he nods, accepting defeat. 

"Fine." He says, but I know that's not it. It never is with Dark. "On one condition." Called it.

"What?" I say, still ready to use the knife if need be. He stares at me and for once I see something in his eyes I've never seen before... Hope.

"Let me see him one more time."

"No." I don't even think about it. I will not let this monster near my friend again. 

"Please. Then afterwards I will return to hell and never come back if that's what you wish. I promise." 

Honestly, if he didn't promise, I probably would've said no again. But I know Dark. And Dark never breaks promises. Ever. It's part of his code, that he wouldn't ever break a promise. Normally those promises are threats, but it doesn't change. A promise is a promise, and he keeps to every single one. So I nod, and he sighs in relief. 

"Just come in when I take them down." I say, referring to the dream catchers, and he nods. He puts his hand on my shoulder and we teleport to my house, or outside my house. And Seán's. His light is still on, and I can see he has the blinds closed. I walk inside the house without a second glance towards Dark and quickly take down a couple of the dream catchers. At least enough for him to come inside.

And he does. He walks through the front door, closing and locking it behind him. Then we walk up to Seán's room, and I unlock the door (though hesitantly). As soon as it's unlocked Dark pushes past me and into the room, embracing Seán and holding him tight. 

"Oh my god, Dark. How the hell did you manage to convince Mark?" Seán breathes out, tears coming to his eyes. Dark only chuckles, not saying, as he kisses the top of Seán's head. This just makes me growl. 

"Drop the act Dark. Tell him you've been using him this entire time. Just stop lying!" I say but Dark just turns to me, a look in his eyes I've never seen before. I can't even pinpoint what it is. He looks back at Seán, holding his hand tightly.

"I love you so much Dark." Seán whispers and Dark nods in response before turning to me. 

"Mark, you asked me what love is." He says and I nod, walking a bit closer to them.

"And you can't answer because you don't know." I say and he shakes his head, grabbing my hand and putting it on his chest. Immediately my eyes widen as I feel the soft thumping of his heartbeat. The heart that's supposed to be dead. Why is it beating? 

"That's what love is to me. Seán is what love is to me." He says it quietly, and I look over at Seán to see tears in his eyes and happiness in his smile. I exhale slowly, shaking my head and handing Dark the knife. 

"Just stay." Is all I say as I walk away, hearing the two laughing and talking. And I can't help but smile myself, confused but happy for the two. 

I guess that is what love is. It's the person who makes your heart beat. The person that makes you feel like no one else can. Love is indescribable. Love is something no one can really explain. God know no one can explain those two, but they love each other. Somehow, they love each other. And that's what love is.