A/N: Ohhh, I'm starting another fic? While my FMA fic sits neglected? Yes, yes I am. But, it's not just me, this time. Seductivefeline, asked to do a collab fic with me, and he's so talented idonteven fgkjgh ;-;

Any chapter in Izaya's POV was written by ListlessDark.
Any chapter in Shizuo's POV was written by Seductivefeline.

This fic will have Male X Male relationships,
This fic will sexual content.

You have been warned.

Izaya's POV;

Humans. They're worth so much more than just drawing energy from. They're just so… interesting.And oh, how I love them. Ahahaha, I take that back. It's certainly not love, the notion of actually feeling anything close to that repulsive thought is laughably unbearable. No, it's certainly closer to lust. And yet they swallow the lies that I feed them, because they're so dimwitted that they can't tell the difference between the two.

Perhaps that is why I keep going back to them.

And perhaps it's for that reason that I find myself walking the busy streets of yet another human city on this night. The lights, the sounds, the sheer amount of people, it's all quite entertaining. Yet tonight, I'm not here for the entertainment factor. Tonight is my favorite kind of night; tonight is one of those nights. The hardest thing about a night like this is simply deciding where to start looking.

True, as I walk aimlessly I am surrounded by potential. Yet for some reason, I see not a single being that I am drawn to. Perhaps, though, that is because of where in this monument to society I am. I turn on my heel, heading in the opposite direction. This area, despite its abundance of the amusing things, is really doing nothing for me. This is not the side of town that my usual pickings are from. No, it's much too clean, much too pure. It's not as if I can't play with the purer humans – I'm good enough at what I do to get damn well anybody that I want- it's just that these cleaner ones just aren't as much… fun. I sigh. What a waste of my time to even end up here.

Getting closer to my usual side of Shinjuku, and to my residence when mingling with these creatures, I can't help but feel anticipation growing within me. I know that there are people who stop to look as I walk, and this is absolutely fine with me; let them look. But even here, in my area of preference, I can't cause myself to choose one. I love all my humans, I really do, but tonight, each and every one of them seems feeble and, well,stale. Maybe it really is this city, and not just what side of it I'm on. Well, if I can't choose from this one, perhaps it's time to go into a different one. But there's just so many to choose from! So many cities filled with so many humans filled with so many opportunities.

Glancing at my phone, I check for the time. It is getting a bit late into the night, so I need to choose one soon. As I continue my stroll, I can't help but overhear a conversation between two rather loud teenage girls.

"Did you hear about the fighting that's been happening in Ikebukuro?"

"No! Was it colour gangs again?"

"Yeah,yeah! I heard that the Yellow Scarves were targeting the Dollars!"

"Kyahhhhh, that's so scary!"

"I know, I know!"

Ikebukuro, eh? And fighting amongst these humans has been going on as well? Ahahaha, my, my! How interesting! It seems like I've just decided where I'll be choosing tonight's pick from.

Let the entertainment begin.

Stopping, I take a brief look around, trying to absorb all the sights at least faintly. This city feels vaguely familiar. Huh. I'm pretty sure that I've never been here before, though. I can't feel the deterioration on these humans that I feel when I'm around those I've lain with. That little factor, however, will soon change. Of that much, I'm going to make sure.

Hmm. Glancing around, though, there's really not much of a difference between this city and the last. Certainly there are obvious differences, like the different shops, the different buildings, and that large black man trying to get the attention of the crowds for sushi. Wait...Maybe him..? No, no, no. He doesn't look like he'd really be much fun at all. Looking him over one more time, to even have considered him, I must be getting antsy or restless orsomething. Ugh.

Shaking that horrid thought out of my mind, perhaps it's time for me to start walking again. It really is getting late, and I'm growing more irritated by the moment. Before I set off, a group of high-schoolers walk by me; two boys, and one girl, who just so happens to be very well endowed when it came to her chest. I honestly consider her for a moment. She doesn't seem to be pure to the point of being boring, nor does she seem to be so far into contamination that she's filthy. I begin to reach out to her, but I stop myself. There's something not quite right about her, something not quite… human. I sniff indignantly, and turn away. No sense in playing with a little girl who I can't even feed off of.

And it is with that little sniff that I give that I catch the scent of something oh-so-interesting, and I really can't help but feel excited. I catch the one scent I've been truly searching for, one that will surely lead me to whoever is destined to be the next I lay with. I've caught the scent of pure, unadulterated, sin.

And this is not the type of sin that gives off an unbearable stench, the same stench that permeates the air of many down-town areas. It is not the same stench that tells me I have stepped into the truly filthy side of the human world, the side filled with the humans who think themselves above the rest of their lowly kind. Oh, no. This scent smells of lust and rage and pride, all laced with the heady scent of alcohol and oh, how it delights me! How it arouses me with promises of a night to behold, a night filled with—

Ah, I'm getting ahead of myself. I take a deep breath, inhaling deeply. This smell is much too faint to be very close, so I need to calm down before I get too excited. Reveling in the way it both soothes and excites me, I inhale this scent once more. This is mainly to help me figure out which way to go, but I'm not afraid to admit that a lot of the reason for this action is simply for the pleasure it brings me.

With my anticipation renewed and a direction in which to head, it's certainly time to get a move on. With a light skip in my step, I head in the direction of this tantalizing scent. Surely, here too, I am turning heads, but as of this moment none of these "pures" or "not-so-pures" matter at all. They're not at all drenched in this smell, and even the not-so-pures don't come close to the power of it. But I won't let this deter me. I know that wherever this exquisite scent is leading me, it will be full of promise and full of choices.

It is with this thought that the overwhelming need came near to consuming me, and I increased the speed of my gait. I had to get to wherever the hell it was that I was going, and I needed to get there relatively fast. Despite this overwhelming need, as I felt myself grow closer, I couldn't help but fall under an overwhelming sense of giddiness.

Finally, after what I swear has felt like years to me, I find the source of the scent that drew me here. A club. How predictably simple, but in that simplicity, even I failed to think of it. I stand outside of the place for a few moments, simply enjoying the feeling of it all before I walk in.

Making my entrance into the club is almost like me literally stepping into my comfort zone. I know the rules of the underground- hell, it's my kind that made most of them- so I know just what to say to get what I want. Heh, though with this lot, I'm sure that all it would take is a few words and a few "accidental" brushes of skin to get them wrapped around my little finger.

I don't immediately head for the counter to order a drink. Instead, I scope out my choices. This is not a bad little spot to pick from, at all. These humans, they're much more interesting than those outside of this den of sin. They fight amongst themselves, and then act as if nothing has happened. They dance lewdly, twisting and gyrating their bodies, and then when another tries to cop a feel there is an issue about it all.

I laugh to myself. Yes, perhaps I should even join in on their antics… to help me decide, of course. I spare no glance to any patron as I manage my way onto the dance floor. This city may not know my name yet, but this club seems like a fairly good place to start making my mark. I wiggle my way through the crowd, finding a path to the direct center of the dance floor, and I work my magic.

I feel every pair of eyes on me, and I love it. I can tell that they want me, that they crave me, and I'm content to let them feel that way. Their longing only makes my hunger grow stronger; their lust-filled eyes dull in comparison to the shine of the sin that fills my own set of eyes. My options are no longer limited to a few off of the street, but to a club full of humans, both male and female, who seem to be completely ready to give themselves to me. I smile because that's how I want it. I don't want it to be a few secret, fleeting glances from useless teenage girls coming my way. I want the undivided attention of all, because I deserve it.

After a while, I've narrowed my choice down to two; a rather voluptuous woman who has not relented on attempting to create a sexual air between us, and an older man who can't seem to stop undressing me with his eyes. Both have that wonderful scent not only clinging to them, but surrounding them. It seems to almost radiate from them both. I stop my dancing, deciding on making a choice over a nice drink.

Making my way to the bar, I believe that my choice has been made, until the bartender gets the notion to actually turn around.

I do a quick run-down of him. He is rather tall, that's what I notice first. The next thing I notice is his hair, obviously bleached, but he pulls it off oh-so-well. The third thing I notice is his build; he's well toned, attesting to his strength.

But despite these most glorifying physical aspects, the one thing about him that catches my attention is what seems to be emanating from him, himself. He smells of alcohol, violence, and despair. And I absolutely cannot believe how strongly he radiates it.

I find myself grinning cockily, knowing that tonight, I will get what I came for, and this man will be the one to give it to me. Yes, he will do just fine.