Hi there, so this is my very first fanfic that I have ever written so I hope it's okay. This is what I think will happen after the season 4 finale, and please leave reviews to let me know what you think of it!

Some of it may not match exactly to the storyline of the show, like Lexi never had a sister in the show. But I thought why not?

I don't own the vampire diaries or any of the characters, except for Theresa who I created in my head.


Flashback

"If you're ever in serious trouble and I'm not around, she will help you" Lexi told him.

"How do you know she will help? And do you really think I will get into so much trouble that I would need help?" Stefan asked her, he didn't remember what brought this conversation up but he needed to know.

"Of course you'll get in trouble, especially if you fall for another brunette psychopath like Katherine. And I know she will help because she swore an oath to me." She answered easily, and even if there wasn't the oath she knew that us Branson sisters would do anything for each other, after all blood was thicker than water.


Present

I took a deep breath and dove in. This was the 10th time I have dove in the water looking for the damn safe. Last night I had arrived in Mystic Falls, and with a little eavesdropping here and there I headed to the waterfall or lake or what ever they called it. I was stood watching on the side lines just out of sight where I watched the scene unfold in front of my eyes.

Stefan was Silas' doppelganger? I didn't understand, how could that be? The next thing I knew Stefan was in a safe headed to the bottom of the lake, I stayed in the shadows until Silas left, still in his original form. It was uncanny how they looked so alike.

After an hour of searching I finally found the safe and grabbed hold of it and pulled, it took all my strength to haul it onto the shore. When I finally got it on land I got my black Ford 150 and struggled to put the safe in the back. Normally this would be nothing but seeing as I had been driving non stop for over a day I'd had no time to grab something, no, more like some one, to eat.


-20 minutes later-

polyvore (.com) /theresa/set?id=90418469

I finally arrived at the farm I was renting on the outskirts of the town and pulled the safe inside the house. Once the safe was secure I went back to the truck to grab my bags, after I put everything away and drank a few of the blood bags I brought with me, I changed into fresh and dry clothes. I made a start towards the safe and just reached out to touch the wheel to unlock it.

"You're welcome by the way" I was startled by the sudden voice behind me.

"I forgot you came, sorry, thank you Jess. And you are sure no one can enter the premises without my invitation?" I turned to face the petite blonde behind me. Jess was a witch I met on my travels and we had grown close, eventually traveling and protecting each other.

She sighed and gave be a brisk nod "I also made sure that whoever wishes to enter will be forced into their true form…Well I really do not want to be here when you open that up" she pointed to the safe, "so if you don't mind me, I am going to go to the stables and see the horses"

Once Jess left the house I approached the safe, I turned knob and lifted the door up. Stefan's eyes slowly opened, he struggled to get up as he was too weak. So I grabbed a blood bag and held it towards him, he responded instantaneously, his hand shooting up towards the bag and draining it of its contents.

"Well Mr Salvatore, looks like Lexi was right it was another brunette who managed to get you into trouble" I smirked at the now alert Salvatore brother.

"Who are you? And how do you know Lexi?" He had pushed me against the wall and was holding me by my neck.

"Of course, this is our first time meeting isn't it? I'm Theresa Branson. I'm Lexi's older sister." Stefan's mouth dropped as he took in the woman in front of him.

She was nothing like Lexi. Where Lexi had straight long blonde hair, Theresa had cascading brown curls which had been dyed blonde at the ends. Lexi was around 5'7 and her sister was around 5'11, easily 6'2 in the heels she was currently wearing. The style though was some what similar. Lexi's eyes were a dark grey and she had light brown eyes.

I felt his gaze linger over me, I cleared my throat "if you don't mind removing your hand from my throat" Stefan released his hold and moved back to give me space "thank you, now that we have all that sorted out, how about I help you out with your little dilemma."

I walked into the kitchen, Stefan following shortly behind.

" Why and how exactly do you plan on helping me?" He asked taking the seat across me at the island.

"Well, I have a witch and I am older, stronger and probably smarter than you. Plus I made an oath to my sister to look out for you, when in reality I should have been looking out for her." I sent him a knowing look. I knew exactly what happened to her, she called me letting me know her where abouts, it didn't take long to find out it was the older Salvatore who had killed my sister.

"Okay, so what is the plan? Walk in to town and start pointing at people claiming they are Silas? It's ridiculous! It would be best for me to stay here and help from here until I am really needed" He looked at me.

I moved around to stand next to him "no. The plan is for you to walk into town along side me and we will find recruits, your brother, the doppelgangers brother, the blonde baby vamp, any one who can help and we will make a plan of action" I walked over to the door and held it open.

"Why should I be walking around town? I don't get it, it will just anger Silas even more! Knowing someone fished me out of the lake!" He looked exasperated, and he still hadn't budged from his seat at the kitchen counter.

"You should be walking around town because you are going to make it harder for Silas to walk around pretending to be you and wreak havoc. Now are you going to move or am I going to have to carry you?" He finally got on his feet and walked out to the truck.

"Where are we going to go then? We should probably check on Elena, make sure she's okay and not hurt or anything" He was sat in the front seat looking at me.

I turned to look at him and raised one eyebrow "correct me if I'm wrong but she chose your brother, so you have to moral obligation to go over and check on her. Plus I have been working on over drive for over 24 hours so we are going to go to a bar, Stefan Salvatore. And we are going to get smashed."

He looked over at me and smiled a Cheshire cat smile. "What?" I looked at him quizzically.

"You are just like Lexi. Thank you, I have a feeling we are going to be great friends" He smiled

I rolled my eyes then pulled out of the drive, honking twice to let Jess know I was leaving, and then headed out to the Mystic Grill. A few minutes later I pulled into a space in front of Mystic Grill and hopped out of the truck.

Stefan came over next to me, worry was written all over his face. I instinctively grabbed his hand and ushered us into the bar. Once we entered the bar I scanned the area to make sure Silas wasn't around playing tricks, I felt Stefan tense next to me, I followed his gaze to a booth near the back seating none other than Damon Salvatore, baby vamp, the doppelgangers brother and none other than the doppelganger wench.

The blonde baby vamp caught sight of us and waved us over, I moved towards the table still holding onto Stefan's hand which now had a firmer grip.

"Hey man, what's up?" the brother asked Stefan as we approached. Once we were at the table Damon and the doppelganger finally took notice of our presence. Damon's eyes widened when he saw me, and I replied with a shrug. But the doppelganger, her reaction was priceless, when she noticed me she started to scrutinise me, the minute she saw my hands and Stefan's interlocked she went pale and her jaw dropped.

I smirked and then averted my gaze from the obvious new shell-shocked love birds and looked at the baby vamp and brother "hi there, I'm Theresa. It's a pleasure meeting Stefan's friends, and you are?"

The doppelgangers brother was the first to speak up, obviously taking a liking to me "Jeremy Gilbert, pleasure to meet you." He gave a friendly smile then nudged the baby vamp.

"Hi! I'm Caroline Forbes, it's a pleasure to meet you. Any friend of Stefan's is a friend of mine" She gave me her million dollar smile.

"Well it is an absolute pleasure to meet you Caroline" I gave a small smile then turned to her right "and a pleasure to meet you too Jeremy" I gave him a smile and winked. Then I turned to the love birds "Damon" I said dismissively, then eyed the doppelganger who had slid down into her seat to appear invisible, "and you are?"

"Elena.. Gilbert" she shifted awkwardly. Damon reached over and touched her hand, she flinched but then relaxed after a bit. Interesting, it's almost as if she was threatened or didn't want Stefan to think she was officially with Damon.

"Always a pleasure meeting the new Petrova doppelganger. Now if you will excuse us, I think Stefan promised me a drink" I turned on my heel and walked off to the bar hand in hand with Stefan.

Using my vampire hearing I over heard their conversation once we left.

"What did she say her name was? Theresa? And how did she know you Damon?" Caroline chatted away.

"Her name is Theresa Branson, she's Lexi's older sister. I met her a century or two ago" He said simply.

"Do you know if she's single? Because I think that I might have a chance if she is" Jeremy spoke simply.

"Jeremy! No you cannot date her okay! Stay away from her" WOW it seemed like the doppelganger, oh no wait, Elena was hell bent on keeping me away from him.

"And don't think you're off the hook Damon! Were you two a thing?!" Elena exclaimed. All I could do was chuckle, now I know what the Mikealson's saw in this group of friends, lovers, and siblings.


Hope you all enjoyed that chapter! Please leave me reviews of what you think about the story so far, also please let me know who you think her potential ex/current love interests should be. I was thinking maybe Damon and Theresa have a past together? And what do you think about me bringing in the originals?