A/N: So from here on the story really begins! This has been on my computer forever and so I thought that maybe I'd finally start posting it. I have written quite a bit of this story already so updates will be weekly for now, but that may change in the future.

Warnings: Slash, references to sex between men (not really detailed), Mpreg? (possibly), you might get irritated with Harry and Draco 'cause they go back and worth pretty much the whole story and are blind/noble/scared idiots :)

But anyways, I hope you like it!

Disclaimer: Don't own Harry Potter

Six Years later

Harry Potter sighed as he sat down on one of the comfy armchairs in the study of the Potter Castle in Scotland. It was the first weekend of March and he had decided finally to go through all his properties in England and see what they consisted.

He should have done it years ago, but had found no time or motivation to do it. Now however, he felt like it was time, so here he was, in the biggest place he owned out of his ten houses/cottages/manors/castles – you-name-it – in Britain. Harry didn't even want to think about the other places he had abroad. He had only visited three of them in his 41-years of age. Harry had spent every weekend since New Year's going over to his properties and gone through the paperwork and stuff and now he was in Potter Castle, which was the last one on his list.

He had gone through paperwork for the last hour and hadn't looked through even third of it yet and he was already exhausted. He felt more tired than he had felt in years and that included his stakeout missions before he was promoted to Head Auror.

It was weird.

Come to think of it, Harry had felt fatigue lately more often than not, even though he hadn't done anything exhausting.

'Maybe it's the old age.' Harry thought jokingly as he dragged himself from the chair and stood in front of a mirror. He was 41-years-old but looked no more than thirty. It was the wizards' slow ageing that made him look so much younger. In Harry's own opinion he looked good. He had finally grown up after the war and was now a bit taller than average. His body was well-toned and he was no longer the scrawny kid everyone remembered. His hair, as usual, was a mess, but it gave him a boyish look that made him look even younger and hotter and his beautiful emerald eyes were no longer shadowed by glasses as he had had his sight corrected after the war. All in all he was very good looking, but today he looked tired and slightly pale.

Harry wondered why that was. He had eaten and slept well the night before though he had woken up covered in sweat for some reason. In fact he had woken up in sweaty sheets nearly every morning the past month, but recalled having no nightmares, which usually was the reason. Harry regarded his reflection thoughtfully as if trying to see what was wrong with him, but found nothing. He felt fine, only very tired lately.

Shaking his head Harry turned around and walked back to the wooden desk where the paperwork waited for him. With a sigh he got back to work. He went through paper after paper about old business contracts and notes for the next fifteen minutes till an old parchment caught his eye. He took it in his hand and read through it his eyes widening in disbelief the more he read.

Betrothal Contract

Potter & Malfoy families 14th.June 1799

We, Marcus H. Potter and Septimus D. Malfoy hereby sign this betrothal contract between our two families to mend the friendship and alliance our Houses once preserved. One person from each house is to join hands in marriage with the other in six months' time from the moment this contract is found. So Mote It Be!

Signed,

Marcus H. Potter, Septimus D. Malfoy

Harry slumped down to the seat shocked. The Potters had an ongoing Betrothal contract with the Malfoys of all people.

This couldn't be happening.

Harry thought about his kids who had not yet even left Hogwarts. James was in his last year, Albus in sixth year and Lily in fifth year. And one of them would have to marry Scorpius Malfoy in six months. Harry had nothing against the boy, having met him a few times and found he was very polite and smart – nothing like his father – but to force one of his kids to marry him? Harry honestly didn't know what he'd do if he really had to do that.

Lily was only fifteen and while she didn't care whether she dated boys or girls, Harry knew she had no interest in Scorpius. In fact she was dating some boy from her year at Hogwarts – at least Harry remembered her mention it. He had learned long ago not to meddle in his daughter's dating affairs after he had pulled the overprotective father (combined with the hero of the wizarding world, Voldemort's defeater etc.) act when she had brought one guy home for the first time when she was fourteen. She really had a temper to match her mother and a namesake and Harry had been forced to accept the fact that his baby girl wasn't so little anymore.

Albus too was only a year older than Lily and while he preferred boys he had been best friends with Scorpius since they were both sorted to the Slytherin house. They regarded each other as brothers and if it weren't for the fact that Albus was nearly a carbon copy of Harry and Scorpius of Draco, Harry would say they were twins with the way they communicated and knew each other. It reminded Harry greatly of the Weasley twins. But no, there was no way the two boys could marry each other.

And then there was James; the most mischievous of the Potter kids. They had just celebrated his seventeenth birthday and James had officially introduced his apparently longtime girlfriend properly to his parents. Harry of course had known about the girl, Alice Longbottom, as James had come to him for advice and to rant about girls many times during the two and a half years the pair had dated. Harry honestly wouldn't be surprised if they ended up married, but he hoped they would wait at least till they were twenty to really know what both of them wanted. Alice was a very sweet girl and reminded Harry greatly of her parents Hannah and Neville, whom Harry was still very close friends with, and knew that he could not break the pair up to force James to marry Scorpius – James would never forgive him.

He wouldn't forgive himself.

Rubbing his face into his hands Harry stood up and set out to go to Gringotts to verify the contract. There was still hope that it wouldn't be valid anymore, after all it was over two hundred years old.

There was still hope.

Draco Malfoy sat in his office sipping coffee as he read the latest letter his son Scorpius had sent him. It was late in the Monday evening as he had been overworking again, going through a case he was to present in court in a few days. He was working as a solicitor for a man who had been assaulted on his way home from work and beaten very badly. He was now suing the one who did it and Draco had to make sure they won the case.

Draco chuckled softly as he read about a prank Scorpius along with Albus Potter had played on the school. It still amazed him that the two boys had become best friends as their fathers barely got along even now, years after their school rivalry. Draco, though he would never admit it even under Veritaserum, was a bit jealous of his son as he himself had wished for a friendship with Harry when he was young but had gotten rejected. But Draco had nothing against Albus. He was an intelligent lad and Slytherin to boot, though Draco often wondered where the boy got it as both his parents Potter and the Weaslette were Gryffindors through and through. 'I bet Potter was shocked.' Draco thought smirking.

A sharp knock on the door startled Draco from his musings and he called the person in. 'Who would be still at the Ministry at a time like this?' He wondered glancing at the clock. It was nearly midnight. He shifted his gaze back at the door just in time to see Potter's head appear, his hair a mess as usual.

"Malfoy, you got time? I need to speak to you about something." He asked his voice serious.

"Come in." Draco said with a curt nod towards the chair in front of him. He had had to work with Potter on many occasions, him being a lawyer and Potter being the Head Auror and they got somewhat along these days and were actually capable of having a civil conversation without too many insults in the mix.

Potter came in, his posture full of confidence, which was very different of what it had been when they were still at school and Draco still couldn't help but wonder about him.

"So what do you want Potter? I thought we wrapped up the last case on Friday." Draco asked sounding bored.

"I'm not here about a case. I'm here about this." Potter said and handed him an old looking piece of parchment.

"What's this?" Draco asked reading through the paper, his eyes narrowing. "What kind of sick joke is this Potter?!" He demanded.

"Unfortunately, it's not a joke. I confirmed it earlier today with the Goblins, it's valid." Potter said tiredly. "You can check for yourself, if you don't believe me."

Draco looked at him his eyes narrowed before turning to his fireplace and contacting his Vault manager. After a few minutes discussion the goblin confirmed that the contract was indeed valid and should be fulfilled in six months' time.

"What are we going to do Potter?" Draco asked shocked. His son, his only son would have to be married to a Potter.

"That's what I'm here to discuss with you." Potter said tiredly. Draco noticed he looked really pale.

"What can we do? Our children have to get married before September the 1st or we'll all lose our magic! There's no way around a betrothal contract." Draco exclaimed.

"Then we'll find a way. There has to be some kind of loophole." Potter said. "There's no way one of my children would marry your son. While I have nothing against Scorpius, James is as good as engaged with his girlfriend, Lily's not sixteen yet and has a boyfriend of her own and Albus thinks your son as his brother. How do you think I will force one of them to marry Scorpius? They'd never forgive me."

"Fine. We'll find a way. We have six months to do it." Draco said more to himself. "Who knows about this?"

"No-one apart from the goblins. I came here as soon as I could." said Potter.

"Not even Weaslette?" Draco asked raising an eyebrow and Potter shook his head. "Fine, let's keep it that way for now. There's no point in worrying the kids just yet."

"Agreed. I will collect all the books I find about marriage contracts in the Potter and Black libraries." Potter said.

Draco nodded. "I will check the Malfoy library. Let's meet on the weekend… where?"

"Potter Castle in Scotland." Potter said. "No-one else knows about it and it's where I found the contract. There has to be something about it."

"Fine. Leave me the apparition coordinates." Draco said and Potter wrote them down.

"I will key you to the wards." Potter said standing up. "Meet you there at ten am in Saturday morning."

Draco nodded his agreement and Potter left.

'What a mess.' He thought.

Harry shut the door of Malfoy's office and started walking back to the Auror Department when suddenly he started feeling dizzy and his vision blackened. He took hold of the wall beside him to not to fall down and waited for the dizziness to pass. It was the second time in the same day that he had felt the dizziness. The first time it had happened was when he arrived at Gringotts to verify the contract, but had dismissed it as a side effect of apparition, though he hadn't felt dizzy in years having accustomed to its feeling.

The second time couldn't possibly be a coincidence. The fatigue, paleness, dizziness; there was something definitely wrong with him.

But what?

A/N: Thanks for reading! Please review and tell me what you think!

- Dalnim