Disclaimer: I do not own Doctor Who, but I do own Scarlett Noble and any other characters I make up!

Author's Note: So as you can tell from the summary, this is a Donna Sister fic. I've seen a lot of fanfics with Rose's sister (I even wrote one), but I decided to go in a different direction and let Donna, who is now my number one favorite companion, have the sister. Scarlett is her name and she's faced by Holland Roden. You'll regonize her from Teen Wolf. I thought she would be perfect for Donna's sister. I'm not going to tell you about her personality as you'll see what it is as you read the story. Also the romance won't start until Eleven. With Ten, it's just friendship so yeah. Anyway, please leave reviews and tell me what you think! :D

Scarlett's POV...

I grinned happily as I looked at the reflection of my older sister, Donna Noble, in the mirror that she was standing in front of. She was getting married today. A day that she had been looking forward for ever since I could remember. She would talk about it all the time. That was my sister for ya. She talked too much sometimes, but that's what I loved about her. And the fact that she took no shit from anymore. She really was the best sister.

"You look so beautiful, sis," I told her softly. And she really did, the wedding dress that she picked was so beautiful on her and she looked really happy which only made her look even more beautiful.

"Oh don't be stupid, I don't look beautiful." But Donna still blushed at the compliment.

I frowned. "Hey, don't say that. You do look beautiful." I turned my sister round by her shoulder and looked her right in the eyes. "You are beautiful; don't let anyone else tell you otherwise." I hated how she didn't think that she was important, that she wasn't worth it. I really hoped that this Lance guy would treat my sister right. There would be hell to pay if he didn't and I told her him as such when I found out that she was engaged to him. I didn't know this Lance guy all that much but for some reason, he rubbed me the wrong way but I ignored it because he made my sister happy and that's all that mattered. But that still didn't help the bad feeling in my stomach whenever I was around him.

Donna reluctantly nodded and I gave her a hug. As soon as I broke it, there was a knock at the door and the voice of our father called through,

"Donna! Scar! It's time!"

"Alright, Dad!" I called back. "We'll be out in a minute!" I turned back to Donna, grinning as I gave her shoulders a squeeze. "Ready?"

"Yeah…" She took a deep breath and she actually looked nervous. My Donna, my confident beautiful sister was nervous. That was something you didn't see every day.

"There's nothing to be about nervous Don," I told her, using the nickname that only I could use as she would slap anyone else who would use it, as I gave her shoulders a squeeze. "I mean, what's the worst that could happen?" A lot… something that I would realize soon.

"Yeah, your right. I'm just being stupid."

"No, you're just human." I laughed, giving her a sisterly kiss on the cheek. I looped my arm through Donna's arm, grinning. "Now come on then, let's get you hitched."

"You think you're so funny, don't you?" Donna asked teasingly as we headed towards the door to leave.

"Oh I am so funny," I teased back, flipping my red hair over my shoulder. This earned a booming laugh from my sister and I joined in on her laughter as we walked out of the room and closed the door behind us.

-0-

I held back a laugh as our father, Geoff, looped his arm around Donna's arm rather than the other way around, ready to walk down the aisle. This got slight cough out of Donna as she switched their positions.

"Sorry," our father apologized.

I giggled again and Donna looked back at me, scowling slightly.

"Oi, it's not funny."

I cleared my throat awkwardly, "Uh, right. Sorry sis."

The organ began to play. Donna sighed happily, scowl gone from her face, and the congregation stood up at the sight of her. She caught Lance's eye from the front of the church and they smiled at each other in anticipation. Donna looked back at me to make sure I was there. I gave her a wink and a thumbs up as I mouthed with a smile on my face,

"You're doing great, Don."

Her smile widened at me before she faced forward again, meeting the eyes of Lance as the music continued playing. I grudgingly had to admit that he looked handsome in the suit that he was wearing, just not that handsome. I was sure there were other men who looked better in one than he did … a lot more.

Every single person the congregation had happy looks on their faces, well, if you didn't count Nerys, who was looking Donna up and down with pure contempt. Something I rolled my eyes at. How my sister began friends with girl I had no idea? Donna must see something about her that I didn't.

I put my attention back to my sister, but when I did; my mouth fell open at the sight of her glowing gold. What…the…?

"Donna!" I cried and this made her notice herself and she screamed long and hard. Right before our very eyes, she disappeared in a puff of gold dust and everyone muttered excitedly to themselves while I was still gaping at the spot where my sister once was.

-0-

The next couple hours were crazy to say the least, and I couldn't stop pacing back and forth as a large crowd of family and friends frantically moved about the Saint Mary's Church, trying to figure out what was going on. I could see from the corner of my eye that my Mum, Silvia, was on the phone, talking into it loudly while pushing through the throngs of people.

"No, she didn't run away. We're not talking jitters. She literally vanished. Now, go and check the house and see if she's there." She hung up the phone before addressing one of our cousins, Angelica, rolling her eyes, "Oh, Angelica, that's not helping, is it? Now, smarten up."

"Sorry."

Lance came up to Silvia and she looked over at him.

"Lance – any sign?"

"I've looked all around and I can't find her. Where the hell did she go?" He disappeared into the crowd and I decided to go up to Mum, opening my mouth to say something but she spoke up before I could, saying to me and Dad,

"Showing off, that's where she is! First day of school, she was sent home for biting."

I scowled at her but when I spoke, my voice was calm despite the scowl on my face. "She isn't showing off, mother," I said. "Besides even if she was, she she's never disappeared like that before." I crossed my arms, "Not only that, it's her wedding day! Why would she want to disappear on that?"

My dad nodded in agreement, "Scar's right, Sylvia."

"She didn't disappear, it's a trick! It's one of her silly little 'look at me' party pieces." Suddenly, she looked worried as a thought crossed her mind. I could clearly tell that something did because her eyes flashed with something. "What if she's dead?"

"Oh, don't say that!"

"Yeah, I'm sure she's fine," I told Sylvia softly, placing my hands on her shoulders. "Donna's tough and she can take care of herself."

-0-

Another hour past and there was still no sign of Donna. Though I knew she was fine, I was beginning to get worried and I was the only one who was. Everyone was having a good time, having the reception. I tried to stop it from happening, but it didn't work as I had to be over by the bar, watching with a scowl on my face as people danced on the dance floor, having a good time.

How could they have a good time when Donna was gone?

I huffed to myself, turning towards the bartender. "Beer, please."

"ID," he said gruffly. He was an older gentleman, unfortunately, so I couldn't flirt my way to get a beer. I was only seventeen. In the UK, you had to be eighteen until you were able to drink without having to show an ID card.

"Think you could make an exception?" I asked innocently. "I am the sister of the bride."

"ID," he repeated with a blank expression on his face.

I blew my hair out of my face, pouting to myself, "Oh fine." I turned back around and settled myself on a bar stool, crossing my arms over my chest and leaning back against the bar casually. After a little bit, I was bored. I knew it was a party and I should have fun, and I honestly would be if Donna was here. She was always the life of the party at least for me she was. It was never boring with Donna.

I sighed and as soon as I did, the music stopped abruptly and then there was Donna's voice and she sounded pissed off,

"You had the reception without me."

Grinning happily, I jumped out of my seat and ran to where I heard my sister's voice only to pause in surprise at the sight of someone with her. He was tall and skinny with brown hair that seemed to have a life of its own and that was just begging to get hands ran through it, and he wore a brown pinstriped suit.

I shook out of my surprise quickly though and threw my arms around my sister. "Donna!" I exclaimed. "You're okay!"

Donna patted me on the back, giving me a smile before frowning as she looked at the crowd. "You had the reception without me," she repeated herself as I broke the hug and stood beside her, grabbing a hold of her hand.

Lance shuffled his feet nervously in front of Nerys, "Donna…what happened to ya?"

Her voice raised up a notch as she said again, "You had the reception without me!"

There was an awkward pause until the man broke it, grinning as he waved. "Hello! I'm the Doctor."

"The Doctor?" I said as my face screwed up in confusion. "Doctor Who?"

TBC...

In...

Part 2 of the Runaway Bride...

And there you go, I know the first part of this episode is short, but the other one will be longer. So, what did you guys think of Scarlett? I personally love her so far. Anyway, please leave reviews and tell me what you think! :D

Until next time, DC.