AN: Harry falls in love with Derek Hale. (Teen Wolf)

"Anyone know where Derek is?" Stiles asked.

"Probably off biting other teenagers," Scott muttered.

Isaac snorted. "Hey."

"Derek saved us," Erica spoke, as they watched the Dr. Deaton come back into his office. "I'm healthy. But it is a good question. Where is he?"

They all looked to the veterinarian. Dr. Deaton raised an eyebrow but shook his head. "I have no idea where Derek Hale is. The last place I saw him was at the Hale house. It's due to get demolished tomorrow."

"Well, let's go find him in case he's doing anything suspicious."

Scott led the way into the nature reserve, Stiles, Isaac, Erica, Boyd, Lydia and Jackson following. He had followed the scent of their alpha to this area, an hour after they had gotten out of school. They had actually gotten side tracked when Jackson had put up a fuss, deciding on whether or not to skip lacrosse practice to come with them. Lydia had insisted a few minutes into Jackson's argument and that had been that.

"Dude, Jackson's whipped," Stiles muttered as they walked side by side. They had left their cars with Stiles' jeep by the barricade by the entrance, figuring that by now, police would have left the reserve alone. Peter had been taken down and killed already so there was no more serial killer in town and no more strange animal maulings.

"This still comes as a surprise to you?" Scott asked.

Stiles snorted and shook his head. "I only thought that what with Jackson getting the bite, he would be less… touchy."

Scott laughed and elbowed Stiles, taking a deep sniff of the surrounding area. Derek's scent continued up ahead, going in a familiar direction to the remains of the Hale house.

"Come on, guys. He's up here!"

Derek groaned beneath him, arching his back up and into Harry's hands as they moved. Sweat dripped down Harry's back as he stayed still, waiting for Derek to adjust.

"Move," Derek croaked out on a strangled breath.

Harry dipped down to drew Derek into a kiss and started to move, little by little. Someone whined and Derek thought it might have been himself as he felt Harry move within him, sparks of pleasure racing through his body even as Harry slid in then pulled out slowly.

Harry's green eyes were blown with arousal and Derek grinned, enjoying the feeling of being full. His world dwindled to the man above him and not to the house around him. The house that was in ruins, barely holding up. All the paint was gone and the scents that he could still smell were not of family, of pack but fear and pain.

"Derek, you're safe," Harry whispered, pulling out and then pushing back in suddenly. A hand stroked his sweaty forehead, moving down to rub a thumb over one of his nipples. He gasped, feeling his heart beating quicker and his fingernails grow to claws. He turned his fingers away, not wanting to hurt Harry. "It's okay. I won't be turned."

"How do you know?"

"I'm part phoenix," Harry whispered, his green eyes glowing with new fire and a good deal of love. Derek focused his senses on Harry, hearing the wizard's heart beating fast and scenting the sweat that was rolling down Harry's back. Derek wrapped his arms around Harry, his nails digging into Harry's back. "Remember? Nothing will affect me through my bloodstream."

Heat grew in his body, pleasure building behind his eyes as one of Harry's hands moved downward to grasp his cock, moving over it lightly. His vision near whited out as he spiraled into release, hearing Harry's breathing stutter as he too came.

"I love you, Derek Hale," Harry whispered, running fingers through his hair as he watched the werewolf opposite him fall asleep.

"What."

Scott stared, blinked.

The two men in the half burned down living room were lying on a mattress. They were the only pieces of color in what used to be Hale house. He recognized Derek but didn't know the other guy. The stranger was wrapped around Derek, quickly hidden by a blanket, and was glaring at Scott and his friends.

Scott could smell old fear and pain and new… He could feel his cheeks redden and he elbowed Stiles, who was unashamedly staring at the two. Lydia, Jackson, Erica, Boyd and Isaac were already backing up, with only Isaac blushing. Erica was grinning and Lydia was smirking.

"Stiles!"

Stiles' eyes were wide and his cheeks were red as he turned to face Scott.

"You guys want to get out of here?" The stranger asked, moving up and out slightly, enough that Scott heard…

"Oh!" Scott exclaimed, grabbing Stiles by his arm and pulling him out. "Sorry! Didn't mean to disturb you two!"

The stranger with the wild black hair and green eyes also had a prominent scar on his forehead, one that Scott thought looked like a lightning bolt. But he put it out of his mind as he and Stiles hurried out of the burned out remains of the home that now stunk of sex.

Harry sighed as the teenagers scurried out of the home, hoping that Derek hadn't awoken. The other young man had been exhausted and hurting when he had knocked on Harry's door, his green eyes full of pain. One thing led to another and they had walked over to the house that Derek's family had lived in for a few generations.

And now… a few months after they had met, Harry was about to do something that would break them apart. He had just gotten the last ingredient for the ritual to travel in time back further than a time-turner would allow him to do. He peered down at Derek, memorizing what he had looked like when Derek had seen him in his phoenix form for the first time. Of course, during sex, Derek was beautiful and Harry had fallen for him after just a few dates.

He stroked the sweaty hair off of Derek's forehead, laid a kiss on his skin, whispered goodbye then spoke the words to the spell.

Harry leaned against the tree that would allow him a better view of the Hale house. He had already dampened down his magical presence so that the werewolves within wouldn't be able to sense him or smell him. The moon was not full tonight, wouldn't be for another four days but tonight was still a unique one for the Hales.

Tonight was the night that Kate Argent and her accomplices would try to burn the house down and kill the people inside. He just had to wait. Harry took a deep breath, slid down the tree until he was sitting cross legged and took watch, looking over the Hale house in all its' unburned glory. It was a two story mansion, one that held the current generation of werewolves. And Derek was in there somewhere, joyously unaware of what was about to transpire tonight.

And Derek had no clue who Harry was.

He had seen Laura walking to work earlier today and Derek driving to school. Peter was unburned and non homicidal. Talia Hale was a beautiful woman, alpha werewolf and mother all wrapped up in one person. He had made sure to stay out of her way, not wanting them to think that he was a stalker or a hunter.

Harry waited, cloaked and watching until he heard whispers that were not coming from inside the house. He stood up, tucked his invisibility cloak away, then watched as Kate Argent and her hunter friends walked over towards the Hale house, bearing unlit torches and mountain ash.

Harry's heart stuttered in his chest as he realized that the hunters had pinned the wolves in. That was how they had done it, how they had effectively slaughtered Derek's family. Then he straightened himself, walking idly towards Kate and her friends, his left hand going to his wand. They didn't even see him coming, even continuing to place the now lit torches around the house as someone rolled out the ash.

Harry cleared his throat, cast a blasting charm towards the hunters and the ash. He reached out, held out his hand and summoned the fire towards him, like calling to like. The fire from the torches rose from the wood and jumped right into his open palm as he extinguished it.

Kate yelled out, startled, and turned around, drawing her gun on him. "What the fuck did you just do?"

"I'm saving innocent lives," Harry drawled, shrugging nonchalantly. Kate's friends had now all drawn their weapons on him, their eyes narrowed with mostly hate and some fear. Kate's eyes were lit with 99% hate and maybe 1% fear. "The Hales have done nothing to you. Leave them be."

"They killed an innocent young woman!" Kate exclaimed, her finger tightening on the trigger. Their yells had drawn Talia and Peter, the two of them walking out of their house and staring at them. "They're werewolves, don't you know? They're evil!"

Harry rolled his eyes, glanced over at Talia, who was studying him. "The way I see it, you're the one who's about to kill innocent people. Kate, forget about them."

"I will not. They deserve to die!"

"Huh-uh."

Harry watched as the other hunters pointed at Talia and Peter too, as if they expected them to attack first. "We can do this the easy way or the hard way but you need to stop this."

"No."

"Very well then," Harry remarked, drawing his wand and stunning all of the hunters. Kate fell the ground, stunned and not moving. Harry walked over and peered down at her, removing her gun, and going to each hunter to remove their guns and other weaponry, storing them in his limitless pack. He strode over to look over Kate again, knowing that she could hear him and spoke. "You should know, even if you don't remember this when I'm through with you, that the Hales are under my protection, hunter. I don't take well to threats and nor do they."

"Who are you?"

Harry turned around, seeing that Talia had approached him while his attention was on Kate. Her eyes were not glowing alpha red while Peter's were though his were just gold, beta gold.

"I… Harry James Potter, at your service, Talia Hale."

Talia looked him over, eyed the unmoving hunters, then returned to him. "Seems like I should get to know you, stranger. How did you know that Kate and her friends were about to kill us?"

Harry sighed, glanced over to the Hale house, tried to imagine where Derek's room would be. "Would you take time travel for an answer?"

Talia blinked, looked over at Peter than gestured towards their home. "Would you like to come in for tea?"

One year later, Harry was working in the Beacon Hills police department as the supernatural go to police officer. Anytime Talia had trouble, her or her wolves would contact him first before calling the general police station.

"Hey, Harry," John Stilinski called over, waving at Harry when he walked in. "Nice lunch?"

"Yes, thanks. How's your wife doing?"

John's shoulders dropped and he shook his head. "They've diagnosed it. Cancer."

Harry was about to reply, when he stopped as he stepped through the door to where the main department was located, his heart speeding up at the young man who was standing in front of his desk. When he had sent himself back in time to save the Hales, he had known that Derek would not remember him. He had tried to avoid the younger man but he hadn't always been successful. Talia had invited him over for tea at least twice a week, enjoying his presence and his help with police matters.

"Derek?"

Derek Hale turned around, his green eyes nervous but not… haunted, not weary or grieving. Just… nervous. He had never experienced the death of his family or the loss of his pack, thanks to Harry's actions that day.

"...Harry?"

His heart stopped at those words, hearing the hesitant recognition in them. "Yeah?"

"I remember you."