A/N: JUST SAW THE DOCTOR WHO CHRISTMAS SPECIAL! I AM SO HAPPY RIGHT NOW! McGee's girlfriend is made up in this because I don't know if he has a girlfriend and I felt she did not deserve a name. I'm not up to date on NCIS (is Delilah still around?), being in England I haven't even seen season 11 yet ... stupid England! I have decided that I want to move to New York or maybe San Francisco when I'm older just because. Oh yeah and Merry Christmas again! And if you don't celebrate Christmas, happy December 25th!

I am not the kind of girl
Who should be rudely barging in on a white veil occasion
But you are not the kind of boy
Who should be marrying the wrong girl

She wasn't sure if she was even supposed to be there, she had been invited of course but it felt wrong, she should not be a guest there. He had made a point of blatantly ignoring her since his engagement had begun. Their relationship had been strained and stretched, warped would be a fitting word, into something that it should never have been – hostile. She watched him with accusing eyes from across the room. He glared and glowered at her, warning her to stay away from him forever. This was not the way it was meant to be between them.

Today was his wedding day. His wedding day, not hers. She doubted it would ever be hers. Today should have been her wedding day, she knew it, she thought he knew it too. Today should have been their day. Alas it was not. It was merely his day.

I sneak in and see your friends
And her snotty little family all dressed in pastel
And she is yelling at a bridesmaid
Somewhere back inside a room

Knowing full well that she should not be there Abby entered through the back and was immediately greeted by Ziva and Ellie. Tony was off being busy with best man duties so he was not with her co-workers.

"Are you alright Abby?" Ziva asked, her voice had a heavier Israeli accent than the last time they had met and her voice was a little deeper.

"Hmm? Oh yeah, I'm fine" she smiled unconvincing.

Deciding to drop the matter and have a chat about it later, Ziva took Abby's arm and led her away with Ellie in tow. They swanned past various rooms filled with various people. The bride's family were in one, all dressed in brightly coloured clothes and cheerful, smiling faces. Abby looked down at her own attire – black. It had seemed fitting at the time. She was going to a funeral of sorts, to mourn the loss of her potential relationship and her happiness. Shouting emanated from another room they passed, the bride was yelling at the top of her lungs, obviously not caring who heard. The unfortunate party on the receiving end of the angry woman's wrath was a bridesmaid. The poor girl was positively quivering in fear and Abby nearly stopped to intervene but decided it was not in her best interests.

This is surely not what you thought it would be
I lose myself in a daydream
Where I stand and say

DiNozzo and Gibbs were in the doorway of another room, their backs to the silently approaching females.

McGee's voice could be heard from inside the room "Everything's going wrong" he muttered dully.

"No, no" Tony quickly replied "It isn't. Everything's fine"

For obvious reasons Ziva hurried Abby past the room as fast as she could, Ellie still trailing behind them like a little child.

"Cheer up McGee, hopefully it will only be you wedding day once!" Tony joked, earning himself a condescending stare from his thrice divorced boss.

McGee sighed into his hand "Yeah" his thoughts wandered as he sat there all dressed up for his wedding. On this special day they chose to wander to his former girlfriend, Abby. The way she would always laugh at his terribly pathetic jokes and no matter what kind of horrible, possibly even life threatening, mistake he made, she was always willing to forgive him and make up with a hug. She was good at hugging, always had been as far as he could tell. But she was not with him today, she would not be the one gracing the aisle with her presence. He could not afford to think of her anymore, or he would mess up.

And the organ starts to play
A song that sounds like a death march
She floats down the aisle like a pageant queen
But I know you wish it was me,

Everyone was seated. McGee and Gibbs were sat at the front of the hall, Abby, Ziva, Ellie and Sarah a few rows back from them. Wedding music began to swell into the hall and everyone twisted in their seats, Abby slower than most. McGee was on his feet at the front of the hall as the flower girls entered, followed by the bridesmaids and groomsmen, Tony amongst them, then came the person Abby wished had not. She held herself with a vain grace and in her self-obsession saw herself as a beautiful gem, gliding gracefully, contrasting different to the actual way she looked, a billowing dress; a stompy walk.

McGee had never looked more nervous in his life. In weddings normally, the groom has never felt so happy, and can never take his eyes of his soon-to-be-wife, but as the bride clumped down the aisle Abby saw his eyes flick to her. The second their gazes met he looked away, but she knew it meant something, it had to. Maybe he was asking for help? Was she to save him? Take this woman's place?

I hear the preacher say, "Speak now or forever hold your peace"
There's the silence, there's my last chance.
I stand up with shaky hands, all eyes on me.
Horrified looks from everyone in the room
But I'm only looking at you.

Abby could barely watch as the service began, the preacher began to speak and the room was deathly silent apart from his droning voice as everyone listened in earnest. The preacher is speaking, Abby can see his lips moving but the only noise that registers with her mind is "Speak now". The room falls into complete silence. Mustering all her courage, knowing it will be her last chance, she scraped back her chair and got to her feet unsteadily.

Everyone's eyes were on her, his, hers, her father and mother and brothers, the latters glaring at her in disgust. Ziva was tugging on her arm, her mouth open is shock, trying to pull her back down but Abby stood defiantly. Gibbs's gaze was also on her, but his was different, he understood, he was encouraging her. The preacher may not allow her reason but prehaps McGee will. The only look she cares about is McGee's, he looks neither, shocked nor angry, neither sad nor happy, he looks blank.

"Yes?" the preacher enquires of her.

Running her trembling hands over her face and down her hair she begins to speak "Mc ... McGee, I can't let you marry her" her voice sounded as terrible as her hands stability.

People began to mutter amongst themselves. The word "crazy" cropping up a lot.

"I have no power to stop you, but you need to hear me out" her words were stronger this time and the room fell silent "I thought I could but I can't. Please just don't say yes, run away. Just please don't marry her, please Tim" tears splashed from her eyes as she looked him dead in the eye, his face was still unreadable. Taking this to mean he was going ahead she turned and fled from the room, leaving Ziva unsure whether to chase after her.

So, don't say "Yes", run away now,
I'll meet you when you're out of the church at the back door.
Don't wait or say a single vow,
You need to hear me out,

There was stillness for a few second then the preacher spoke "Now that's over shall we carry on?"

"Yes" the bride answered immediately and the preacher opened his mouth to speak. McGee was not paying full attention, his eyes trained on Gibbs, who was staring back.

"No!" he suddenly stopped the man from speaking.

Now everyone's horrified faces were aimed at him. Her parents tutting angrily.

"I'm sorry" he said to his bride "I can't" then he too tore from the room.

Infuriated arguing broke out amongst the confused onlookers and the bride glowered angrily after her fiancé. She was not sad just mad. Her relatives were the same, positively livid at the recent events and the disruption to the wedding. Tony and Ziva exchanged a quick glance before simultaneously rushing to the door in search of their friends.

And you'll say "Let's run away now,
I'll meet you when I'm out of my tux at the back door.
Baby, I didn't say my vows,
So glad you were around
When they said, "Speak now".

She was crying as she ran down the road, her hand pressed over her mouth to muffle the noise as she scurried in shame, she did not know what she was going to do now.

"Abby!"

The shout made her stop, her foot froze mid-air and the slowly dropped back onto the pavement as she pivoted around to face him "You're supposed to be getting married" she choked, her head hanging low.

"No" he replied hurrying towards her "I'm not. I'm right where I'm meant to be"

She raised her head and saw Tony and Ziva barrelling around the corner of the street, practically falling over each other. Tony stuck out his hand to stop Ziva and caught her in an rather awkward place but Abby noted neither said anything on the subject as they watched from afar.

"You're not marrying her then?" she asked tentatively

"No, no I'm not" he was right in front of her now, barely inches away.

Abby licked her lips nervously "So you're not going back?"

He moved closer still "No, I'm not going back" closing the miniscule gap between them, he kissed her, sweet and tender, as if they had just been married "I am so glad you are here"

So, don't say "Yes", run away now,
I'll meet you when you're out of the church at the back door.
Don't wait or say a single vow,
You need to hear me out,
And they said, "Speak now".

A/N: Oops! I almost went a bit Shakespearian in the second paragraph with the 'Alas'! So just pretend McGee's parents are dead, he considers Ellie one of his friends, and Ziva would come back for McGee's wedding (I would hope that she would)

Wow. I wrote a heck of a lot.