This story starts during The Prisoner of Azkaban and will continue at least through the end of that book.
Harry Potter was rummaging through his school trunk. Sirius crept closer trying to get a better look at his godson. There was no doubt this was James' son. Looking at the skinny boy with messy black hair transported Sirius to the day he'd met his best friend on the Hogwart's Express.
Suddenly Harry looked up, directly into the dark alley Sirius was hiding in. Crouching lower instinctively he watched while the boy slowly raised a wand to illuminate the alley. Catching sight of the massive black dog he yelled and stepped backwards tripping over his trunk in the process and falling hard into the gutter. Snorting at the reaction he slinked back into the darkness of the alley. By the time a pair of headlights lit up the alley he had disappeared down a side street.
Trotting along down the quiet muggle street, Sirius began the long journey to Hogwarts. He resisted chasing down pigeons cursing Azkaban for sapping so much of his strength. Before he got anywhere he needed food. It'd been years since he'd had anything other than hard bread or stale meat followed by dingy water. Stopping in front of a muggle food place with the hard plastic seats he stopped and considered resuming human form. A meal might be worth getting spotted. Shaking his head to clear the scent of food he walked on. He'd survived Azkaban for thirteen years. A few more days eating alley trash was nothing.
Sifting through trashcans in dog form he'd stop on occasion to scratch behind one of his ears. A few years ago he'd gotten fleas and he hadn't stopped itching since. Adding a bath to his list of things to do he returned to the trash pulling out small pieces of deep fried chicken he'd once heard Lily call chicken nuggets or chicken bits. They tasted miraculous to the newly escaped convict.
By the time he started moving north again his tail was wagging. He'd spent so much time in dog form during his imprisonment that he no longer had to consciously act like one. Wagging his tail and scratching his ears felt natural to him now. Stopping once more to scratch him self as a muggle couple walked past giving the dirty, matted stray dog a wide birth. Watching the couple the massive dog couldn't help but stare. They were arm in arm and clearly, sickeningly in love. Growling slightly at the slight scent of female arousal he started moving again.
Valerie was starting to wish she'd looked up British laws concerning bar fights. If she just punched this drunk ass hat hitting on her would she get a ticket and a night in jail or just face being exported? She'd been backpacking for weeks through the U.K. without a drink, but tonight she'd lost her wand. Flying motorbike was usually a good way to travel, until your wand falls out of your cloak at 300 feet over a giant lake in Scotland. Cursing her luck she'd sought out the nearest establishment that served alcohol.
Halfway through her second beer this muggle man had come up to her and started hitting on her. He was breathing his putrid breath all over her face as he used pick up line after pick-up line referencing things like fishing and football along with a dozen other things only a muggle could understand. The accent wasn't helping either. In London it'd been easy to understand everyone, but the further north she went the less people were making sense. She'd had a hard enough time understanding people back home.
"Listen, you seem like a great guy, but I'm really just here for a quiet drink."
"Don't be that way, love. I'll show you a grand ol time."
"Take a hint, man. I'm not interested."
"No need to be such a twat about it." Valerie resisted the urge to punch him reminding herself that she didn't have a wand to clean up her messes right now. The man walked back to his mates and she turned back to her drink. Reaching into her pocket for more muggle money she came up with a chocolate frog and a piece of string. Finishing her drink with a scowl she slammed the empty mug on the bar and stood up. She could probably hit on a guy for a free drink, but she was not in the mood tonight.
She stepped out of the bar and lit a cigarette. Shoving her empty hand into her pocket she sighed deeply leaning back to look at the black sky. Her sleek black Ducati was parked down a nearby alley. Walking back she passed a mangy black dog. "Hey, boy. What're you doing out here all alone, huh? Fuck you're a skinny thing. Lets find you some food. Come on." The dog licked her hand eagerly and wagged his tail amicably walking beside her.
"Which way she'd go?" the noise of the bar reached Valerie and her new companion as the door to the bar swung open. The man from earlier had followed her back out with two of his friends.
"Fucking muggles. Guess you don't need to be a wizard to be a total asshole huh, boy?" The dog's tongue lolled out of the side of his mouth as he looked up at her.
"Hey, slow down!" The man was shouting from the entrance to the alley. Valerie turned and instinctively reached for her wand. Cursing angrily she glared over at the three men blocking the only exit to the narrow alley.
"Look, man, just please leave," she didn't expect that to work, but it seemed important to try.
"Hey we just want to talk, pet. You left in such a hurry." They slowly paced closer almost within arm reach. Dropping her cigarette she hooked her hand in her back pocket and stomped it out with a small smile. When the men had looked down at her boot she quickly pulled a knife she kept behind her back and slashed one man's arm then quickly kicked another man where it hurt most. By this time the last man had time to recover and was regrouping from the sudden assault. Luckily they were all too drunk to react quickly, but the last man was not as far gone as his friends. When he tried to reach for Valerie the huge black dog lunged sinking his teeth into the man's forearm. The one she'd cut dove at her and she was soon wrestling him in the dirty alleyway.
She could hear the dog growling as she fought her way on top of the man and started punching him over the head. Somewhere she sensed the dog was in trouble. The other man had recovered and was kicking the dog that was mauling his friend. The man below her had stopped fighting long enough for her to stand up and tackle the man kicking the dog. The other two ran past her both bleeding from their arms. Arms grabbed her from behind pulling her off the last man.
Giving a triumphant ha she turned in the arms holding her. Tangling their legs she once again fell in the alley. This man quickly flipped them and pinned her hands over her head. Gasping she shook her head clear waiting for the dog to return. When he didn't come she started to worry the dog had been hurt by one of the three men. Looking at her newest attacker she stopped fighting and felt her jaw drop. The man now pinning her to the alley was not from the bar, but she recognized him immediately. Dead eyes were watching her hungrily from beneath filthy matted black hair and stretched waxy skin. Sirius Black looked like a skeleton. She could feel his bones digging into her side. Squirming she felt something that definitely wasn't a bone pressing into her hip. He grinned at her and rolled his hips.
"Sorry, love, but I'm gonna need your wand. Don't worry you won't remember this." He growled baring yellow teeth at her.
"If you rape me and wipe my memory I'll still feel it tomorrow unless of course you heal me, but that's an awful lot of effort for a murderer." Valerie was terrified, but when she got scared she usually started talking too much and making jokes.
"I'm not going to kill you. Just give me your wand."
"So you are going to rape me?"
"No I'm not going to… Just hand over your wand."
"Sorry you just missed it. Dropped it over a fucking lake."
"I don't believe you."
"Why did I use a knife to fight them off when I could just jinx them?"
"Just my luck. Okay you need to come with me then."
"Whoa, whoa, hold on. I'm not going anywhere with you."
"We're too close to Hogwarts and I can't have you giving me away. Since you don't have a wand I can't make you forget this, so you come with me." Opening her mouth to protest Avery was cut off as he raised a fist and squarely punched her.
"What the fuck!"
"Uh, that was supposed to knock you out."
"Holy fuck. What kind of fucking convict are you?" He suddenly lunged for the knife she'd dropped and pressed it to her throat. "So you give me a black eye and now you decide to kill me? That is cold."
"Shut up. We're only a few miles from Hogsmeade. Get up." He pulled her roughly to her feet and wrapped his arm around her waist to pull her against her chest. The knife was pressed into her throat. "Come on." Feeling the hardness pressed into her ass she grinned wickedly and rolled her hips back. The groan that rippled through his chest reverberated through her. "What the fuck are you doing?"
"I'm not doing anything. Just being a good hostage. Why wait for Stockholm syndrome to set in. Let's just get this out of the way." She pushed into him and moaned playfully. The arm around her waist tightened desperately and pulled her back into him. Taking her chance she elbowed his stomach and grabbed the arm around her throat and dropped to her knee flipping him over her shoulder. Before she could get back on him he'd transformed.
The shaggy black dog she now knew to be Sirius Black pounced on her and fastened his teeth around her throat. She completely froze beneath him waiting for the killing bite. She could feel his growl against her neck and the hot sickening breath. When the end didn't come she looked back at the dog. He stared at her and she nodded. Slowly backing off of her he continued to watch her as she sat up. When she made no more attempts to escape he transformed back into a man. The second he looked away she jumped up and sprinted back toward the bar. Before she got there a bottle broke over her head and the world went dark.
Sirius dragged the unconscious woman back down the alley so they'd be out of sight if anyone walked past them. Opening her backpack he found it had an enlargement charm on it. Slinging it onto his back he looked down at the woman. She had long dark brown hair with one side shaved above and around her ear revealing a slender ballerina neck. Watching her fight those men had given him a slight hard on. When her warm body was writhing beneath him that slight hard on had quickly become a raging erection. The second she stopped moving he almost stopped breathing. Her face was flushed from the night's exertions and her hair was spread out like a dark halo. What made him stop thinking were her bright green eyes. They were nothing like Lily's eye's had been. In that brief moment he could imagine a whole life with this woman. This is how it could've been if his life hadn't been totally ruined by a man he'd once considered a friend. The second she recognized him the look of wonder disappeared from her face to be replaced by shock as that beautiful mouth fell open sucking in air.
He was so close, but he couldn't give up the element of surprise. The woman would have to go with him until he got a wand to clear her memory or at least until Peter was dead. Then she could leave. Looking at her bike he smiled. The woman had tastes. It took him far too long to drag her slim body to the bike, but when he did he laid her over the tank and climbed on behind her. Reaching into her pocket for keys he quickly started the bike and relaxed into the seat. This bike was nearly silent and it hummed unlike his old bike. Moving back to the end of the alley he wheeled around. Checking to make sure the woman wouldn't slide off he took to the sky quickly employing the invisibility feature. He kept the bike low and coasted toward the Hogwarts grounds. It seemed like he'd barely taken off when he was going back down toward the edge of the grounds. Stashing the bike in the forest he returned to the woman.
Still unconscious she sighed and shifted slightly. When she moved her shirt rode up slightly giving him a view of her stomach. Readjusting himself he rolled her back over and put the backpack on her. Settling her on his shoulders he slowly started walking towards the castle. When the familiar cold began to creep into the air and the stars disappeared he transformed. It took much longer dragging her as a dog, but his animal form and her unconscious state confused the dementors enough to slip past them.
After that he was able to drag her straight toward the castle. By this point he was exhausted, having to stop to catch his breath more and more. He'd planned on living in the forest, but it'd be harder to keep the woman quiet and secured out there. Dragging her through the entrance to the Shrieking Shack hidden under the Whomping Willow took even longer. Once he'd reached a bedroom he was shaking from the effort. Tying her arms to the headboard he collapsed next to her and immediately fell asleep.
