A/N: Welp. This happened. If I'm making mistakes, please tell me, and please review if possible.
Based of Deadly Game by Tartanfly; however, you don't need to read it (I mostly just liked the concept, it's a little highly rated for me = P) just know that Tony keeps hunting Loki and failing because Loki Laufeyson the vamp is the best lay Tony's had.
Chapter 1: Our Lord The Alpha
Loki Laufeyson sat idly in a cabin in Virginia, reading and running his tongue through his own mouth to take in what he could of the deer he'd killed and drank from last night.
From a long way off, he could smell several humans, many many forest animals, and a few vehicles.
Probing the scents deeper, wary of hunters in the area, he recognised one scent in particular; a masculine, alcohol-infused scent with overlying traces of pizza and blood on the silver knife Loki knew he was undoubtedly carrying.
Stark.
He should've known this hiding place wouldn't last long, after he'd given in to temptation and attacked a hiker a week or two ago. It was just his good luck that it was Stark after him and not a less persuadable victim.
The scent grew closer and closer; the human knew where he was.
Loki expectantly put down his book and unbuttoned part of his shirt, slipping into his wicked smirk as the human opened the door.
"'One of these days, Loki, I won't be here for a jerk off.'" Loki quoted dryly, remembering Stark's exit line from their last encounter. "Today does not seem to be that day, Stark."
"Cram it, Dracula. I need your help." Tony said without as much as a 'hello'.
-O.O-
About three weeks ago...
Tony drove into the parking lot of his motel, turning up his collar so the bite mark Loki had so kindly left wasn't visible. He'd gotten most of the blood off, and he didn't look too messy, so hopefully he'd pass a spot check.
"Honey, I'm home!" Tony said as he opened his room's door.
Steve Rogers, his long time hunting partner, leaned out of the kitchenette with a serious expression that was undermined by his stars 'n stripes apron. "Did you get him?"
Tony sighed theatrically. "He's harder to catch than the bloody Roadrunner." Except I've never been seduced by a bird, he added mentally.
"Really..." Steve said. "Dinner's nearly ready, give yourself a wash."
Tony did, thankful for the chance to get the remaining blood and the smell of sex off himself before Steve noticed anything suspicious.
Steve had used their meager supplies to put up a pretty decent dinner, and Tony talked and laughed with him, trying to keep the subject away from one Loki Laufeyson, until Steve reached forward and yanked his collar down.
"What's that?" Steve said suspiciously, looking at the bandage Tony had applied to his neck.
"Nothing, Steve." Tony said sharply, tugging away from him.
"Did Loki do that to you?" Steve said persistently.
"No, Steve, I got a bite from the sink." Tony said snippily. "It's nothing; leave it alone."
"It doesn't look like nothing. Do you have any other injuries I should know about?" Steve asked, moving around the table to run his hands down Tony's sides.
"Nope, stop it, bad touching - ah!" Tony gasped as Steve found a bruise just above his hips that Loki had left with his inhuman strength.
"Tony." Steve said quietly. "You didn't lose Loki at all, did you?"
Tony didn't say anything, so Steve continued. "You've 'missed' him quite a few times. Has this happened before? And don't you dare lie to me."
"...Yeah. Look, Steve, it's nothing to worry about. Eventually I'll cut that bastard's head off." Tony said, thinking once I get over myself and stop sleeping with him.
"Will you? Why didn't you tell me you'd been having trouble fighting him?" Steve said.
"Steve, that guy is a slippery bastard. I didn't want him to hurt you." Tony lied quickly.
"What's the real reason? Don't give me your bullplop, Stark, I want to know." Steve frowned.
Tony was stuck between being upset at being called by his last name and laughing at Steve's concession to swearing. He compromised by taking a deep breath and saying "Look, Steve, he's - he's really good at confusing you. He doesn't fight with his fangs, he fights with his brain, and..." Tony didn't quite know how he could possibly finish that sentence with something that wasn't 'and then we fucked'.
"Then how'd you get those..." Steve said, looking pointedly at the marks. Then he put two and two together, and realised that the bite was exactly where a hickey would be, and the bruise on his hip was a handprint. "Oh, Tony, you didn't."
Tony managed a look of some regret. He did feel bad, on some level, but on some other levels Loki was the best lay he'd ever had and Tony Stark was notorious for thinking with his dick. "Look, Steve, I'm sorry-"
"Sorry doesn't cover it, Tony. You slept with the monster you were hunting! I can't believe you! That's just - oh my gosh - I - I can't deal with your stuff right now." Steve said, snatching his mostly still-packed bag off the filthy motel carpet and walking out of the room. "I'm going."
Tony heard the antique car's engine start up and Steve leave.
"Shit." Tony said with a groan.
-O.O-
Loki looked way too amused by all this. "Poor Stark. Ruined by your lust for monster flesh." He chuckled.
"Zip the lip. Do you want me to finish the story or not?" Tony said irritably.
Loki gave a noncommital shrug and gestured for him to continue.
-O.O-
This wasn't exactly the first fight Steve and Tony had had. Considering they were best friends with opposite personalities, it wasn't going to be the last either.
Usually Steve just got so sick of Tony's crap that he left for a few days and turned up again having calmed down and remembered that Tony was the son of the best in the business.
This was why Tony didn't worry too much, even though what he'd done this time was probably the worst yet.
After a few days, having knifed a kitsune and started tracking down a new hunt, he was getting a little worried. Tony ditched the hunt and went Steve-searching instead.
Despite the fact that every hunter had heard of Howard Stark and by extension Tony Stark, and Steve was well known and well liked by all who knew him, nobody seemed to know where Steve was.
Again, hardly new; hunters could go off the grid for a while.
As days became two weeks without Steve answering a cellphone or making contact with any of their friends, Tony started to get very worried. It wasn't that Steve couldn't look after himself, but in their line of work even the best of hunters could be taken down.
It turned from 'dude I'm sorry I won't fuck the vamp again' to 'holy fudgesticks Steve where are you if you're dead I'll be so mad' and Tony was calling in every favour he was owed to find out where Steve was.
-O.O-
"Just marry the poor beast and get it over with." Loki said with a swoon. "Your heart only beats for him, I see."
"What part of zip the lip do you not understand?" Tony growled.
-O.O-
Eventually, two and a half weeks after Steve had left, Tony had a lead: his technical advisor and science buddy Bruce Banner hacked Steve's bank account to give Tony his credit history.
Steve was in Hoople, North Dakota.
Tony drove there in record time, using a car he *cough* appropriated *cough* from a parking lot a couple of weeks ago. He tended to do things 'poor hunter' style rather than delve into his not-insignificant personal fortunes.
When he made it to town, he went to the motel Steve had checked into last according to his credit history and found their shared car not in the parking lot. Tony went to reception and got the number of Steve's room, which he apparently hadn't checked out of yet.
It was locked, and had been for a while. Peering through the window, Tony could see Steve's gear still packed up on the floor. How un-Stevey.
"Cap?" Tony asked, referring to Steve's old army rank, Captain.
No answer, though it was pretty obvious he wasn't home.
It took Tony two days of being in town, but he managed to ascertain that the 'pretty blonde man' had driven to the forest out of town, and from the police, he knew that 'the big FBI agent' had been looking into an exsanguination victim.
Vamps.
Had to be.
After making a few calls, Tony ascertained that he was in a vampire hotspot for whatever reason. There was a pack in town.
By wandering the forest at night, looking lost and oh-so-edible, Tony managed to capture a vampire and drag him to a little hut he'd found.
"Where's the big blonde hunter that was in town recently?" Tony snarled, his silver knife digging nicks into the bound vampire's exposed neck.
"I'm not saying anything." the vampire growled, his teeth extended and very deadly-looking as he fought to escape using his freaky vamp powers.
"You are," Tony said, digging the knife in a little more, making the vamp writhe in pain.
Tony continued in his ministrations until the vampire was pleading, begging to not be decapitated.
"It's simple; tell me where he is." Tony said when the vampire begged for mercy.
The vampire did, and instead of upholding his deal Tony beheaded him there and then.
-O.O-
Loki gave an affected wince. "I would not yield so easily, Stark, if you are considering a similar attempt upon myself."
"I said I needed your help, didn't I?" Tony said.
"You needed my comrade's help too, and yet his head no longer sits upon his neck. Where was your partner?"
-O.O-
The Alpha Vampire's house.
Tony had thought that was a myth, but no, right here in this very town was where the Alpha lived.
And they had Steve.
According to the vamp, because of his large size, he made a good blood cow, and as he was a hunter it made the torture ever sweeter.
-O.O-
"Are not the Alpha's sources usually virginal adolescents?" Loki said with a raised eyebrow. "Though it is well known that the older the virgin, the better the blood."
"Well..." Tony said, rubbing his neck. Steve was a bit of a prude.
Loki burst into his infectious laugh. "Even as a monster, I am hardly virginal! You tell me your partner...oh, Stark, he is your opposite in so many ways!"
"He's just waiting for the right girl." Tony replied, wondering how his life had gotten to the point where he was discussing Steve Rogers' virginity in a shack in Virginia with a vampire he'd slept with.
Loki was still chuckling as he said "I hardly see how this involves me, unless..." his vivid green eyes widened. "Oh no. Stark, no. I will not. Never."
"I think you've already figured it out, but I want you to go into Vampireville and break my good buddy Steve out." Tony said.
"Why would I risk my life for a man who would have me dead?" Loki sneered. "You and I are not friends, Stark, we are enemies who enjoy the other's body. Beside that, I am not welcome within the house of the Alpha."
"Why is that, Loki? Why are you the only vamp I've met who doesn't move in a pack? You're a sitting duck, working alone, and sometime someone's going to catch you and kill you, and no one will back you up." Tony said.
"What is your point? I live alone, Stark, that is the way it is." Loki narrowed his eyes suspiciously.
"I'm saying that to every hunter who knows your name, there's a great big target on your back, and I could do something about that." Tony said smoothly.
"You wish to send the word that I am under your protection?" Loki said. This was surprisingly tempting; Loki was sick of being chased by wannabe hunters who couldn't catch him but could run him into a burrow for a while.
"Yeah. Also, you'll have the pleasure of saying 'I'm so fabulous that hunters come for me to help.'" Tony added with a grin.
Loki shook his head. "It would take more than a verbal safeguard from Anthony Stark to convince me to turn upon the Alpha. He has powers you could not understand."
"I'll throw in the location of every vamp-free zone in North America." Tony said seriously.
"Easily done; I could scent them out myself." Loki tutted.
"A fake ID. Loki Laufeyson, pretty vampire, could become Lukas Lawson, pretty human of suburbia, and the vamps would find it harder to grab your ass while you're surrounded by strong-scented humans." Tony said.
"If you add access to your money and to the several hunting cottages I know you own as shelters, I may consider it." Loki deadpanned.
"Oo, you strike a hard deal." Tony winced.
"It is no small matter, working against our lord the Alpha. He has a link to each of us, in our mind, and controls the vampire across the world. Turning against him is turning against yourself. I am fortunate to be outside of a pack, so his influence on me is slight, but it is still there, and I rather value my life." Loki said.
"Fine. I want my hunting partner back. Here's the deal: you get Steve out, and if I get him safe and sound, you get money, hideouts, and ID, not to mention theoretical immunity from any hunters on your ass." Tony sighed. "That work for your Highness?"
"I am no demon, so there is no need to seal it with a kiss, but-" Loki finally stood and shoved Tony against the wall, kissing him before extending his fangs to graze along his jaw. "-do not forget who you are dealing with."
The graze on Tony's jaw dribbled a few drops of blood as Tony's heart beat faster in fear and arousal from contact with Loki. Loki leaned forward with an evil grin and licked the blood off, before beginning to gather his meagre belongings from the shack.
Damn that vampire.