Disclaimer: I don't own Vampire Diaries or Harry Potter.

Chapter 1 - A fight and a Few Drinks Later...

Somewhere in a pub outside of London…

"One rum, on the rocks, please."

Klaus was brought out of thoughts and his eyes flicked to his left, toward the quiet voice and movements of a scarlet haired woman who stool up residence in the bar stool next to the original. He glanced over to her only to find himself caught staring at her beautifully startling emerald eyes.

"It's impolite to stare." The woman spoke up, without turning toward him.

"Sorry, but you have some beautifully hypnotic eyes, love." He replied with his signature smirk. Klaus then looked at her fully, he had to admit that she was rather beautiful.

"Sorry not interested."

"I wasn't flirting, meant it as a compliment, just trying to make conversation." Klaus responded

"So, what brings a lovely girl such as yourself to a pub like this at 2 a.m.?"

"I had a spat, disagreement or argument whatever you like to call it with my husband, it was still a bloody fight, and needed to take a break and get a little drunk." She replied as she raised her tumbler of rum to her lips and took a sip.

"By the way, I'm Lily. Lily Potter."

"Niklaus Mikaelson."

They talked for hours ordering more drinks until they were both too smashed to continue and left the pub. They got a taxi and they both went to his flat.

Five minutes later….

Klaus had lily pinned against the closed bedroom door in a heated kiss that began slow but soon their tongues would partake in a battle for dominance.

Klaus was trying to open the door into the bedroom at the moment, so they had better access to the bed instead of just the closed bedroom door on the other side, so he pulled away from their heated make-out session to open it. Lily took this as her winning their little battle and threw him a confident smirk. Of course, this was only her initiating a challenge to Klaus. "Oh, love you're going to regret that." Klaus said chuckling

Two minutes later…

Playfully growly he picked her up, making her squeak in surprise and walked into the bedroom, this time instead rushing things like they were before. He took his time and movements slowly, he wanted to drive her absolutely insane, until she begged for him.

The following morning, Klaus slowly opened his eyes and rolled over, he was shocked to find Lily there, sleeping at his side.

He tried to recall what happened last night, and then memories came flooding into his mind. They got drunk, came to his flat and had sex. Sitting up in bed, he could see the trail of clothes scattered about the floor from the hallway and coming into the bedroom.

"Lily, wake up." he gently shook her shoulder.

"Morning James, hmmm." She half sleepily murmured.

"I'm not James, love."

Opening her eyes, more quickly than her hungover self would have liked. Her eyes widening, in realization of where she currently was, and it was not her bed. She suddenly sobered up quite a bit and jumped into a fully awake and sitting up position.

"Klaus!? Bloody hell! What the fuck happened?! What time is it?" Lily asked. Her eyes widening slightly, when she was starting to recall what they had done the previous night.

Klaus tried to resist chuckling at the look that was currently morphing from one emotion to another on her face at the moment. But he couldn't, he was too entertained right now.

"This isn't funny Nik! Oh, morgana! We slept together!"

She then began to rush around the room quickly collecting her clothes and putting them on, while going off into hysterias about what she was going to tell James. Klaus just told her, that telling James the truth paired with numerous apologies would be the better way to go than lying, which would haunt her with the guilt forever.

After Lily thought about it a little more, she agreed it was probably the best idea. After that she left his flat and went home. She did ended up tell James the key points of last night's events.

To her surprise he didn't care, because since she didn't come home last night, he assumed that she had finally gotten tired of his shit and left him. He didn't care what she did he was just happy she came back. He loved her no matter what.

Nine months later Lily would give birth to a girl, and James would love them all the same.