A/N: This is just something I thought up through the night when I couldn't sleep, and it wouldn't leave me alone. I can see this being quite light-hearted, and I think I know where I'm going with this one. But I know Gerry's got an idea in his head, and he's not letting it go.

Also, I chose the song "Good Girl" by Carrie Underwood.

Enjoy!

Sarah x

Sandra and Gerry were in the car, quietly listening to the radio. Sandra was very quiet today, and Gerry was convinced she had broken up with the boyfriend he knew she had. And he had a feeling she had chosen a man who had done something she didn't like and then broke it off with her. If he knew who it was, Gerry felt like he would break his nose for doing that to Sandra. She was too good for any man, never mind one who would mess her around.

A song with heavy backing track full of guitars and drums came on, and, to his surprise, Sandra started to sing along. She sounded alright, too, which was even more unexpected.

Hey, good girl
With your head in the clouds
I bet you I can tell you
What you're thinkin' about
You'll see a good boy
Gonna give you the world
But he's gonna leave you cryin'
With your heart in the dirt

His lips are dripping honey
But he'll sting you like a bee
So lock up all your loving
Go and throw away the key

Hey good girl
Get out while you can
I know you think you got a good man

He was surprised to find that her voice was powerful, and she really could sing. He'd known her for years, and never known she could sing like that. She seemed to have forgotten that she had company in her car, and that he was sitting listening to her. She seemed to vent her frustration in the song. Her fingers were drumming the beat onto the steering wheel, and she was lost in the song.

How could he have known her so long without knowing the strength of her voice? It was incredible, for Christ's sake. If he wasn't sitting there watching her, he wouldn't have believed it. When he told Jack and Brian he would be accused of having them on.

He returned his thoughts to Sandra, and if he was honest with himself, she was really quite attractive when she was singing like this. When she forgot she was being watched by anyone. When she didn't care what he thought of her.

Why, why you gotta be so blind?
Won't you open up your eyes?
It's just a matter of time 'til you find
He's no good, girl
No good for you
You better get to getting on your goodbye shoes and go, go, go...
Better listen to me
He's low, low, low...

As she sang along with Carrie Underwood, it became clear that she was pissed off with whatever had happened between her and the man who had made her so quiet today. Well, at least she was letting out her feelings. Maybe she wouldn't shout at him the second he put a foot wrong today, in her annoyance at someone else. She had a habit of doing that, he noticed. Having a pop at him when she was wound up or angry or upset.

She was still paying attention to the road, and the traffic jam they were stuck in. Typical London bloody traffic. Didn't help that it was the evening rush hour and they were set to work late tonight.

Hey, good girl
You got a heart of gold
You want a white wedding
And a hand you can hold
Just like you should, girl
Like every good girl does
Want a fairytale ending, somebody to love

But he's really good at lying
Yeah, he'll leave you in the dust
'Cause when he says forever
Well, it don't mean much
Hey good girl
So good for him
Better back away, honey
You don't know where he's been

Gerry watched her carefully, wondering why she ad never let go like this in front of him before. She looked annoyed with herself as she sang, like she was realising that she'd been an idiot to trust a man. She had heard one of their phone conversations last week and she had seemed quite content with him. Today, though, she was hurt and angry. He could tell when she was hurt. She tried to hide it but never quite managed to get rid of every piece of evidence.

The red, bloodshot eyes, for example, told him she had been crying and drinking last night. The box of paracetamol carelessly discarded on the dash was evidence that she was suffering a headache, a rare occurrence for Sandra Pullman. She was hurt, and hungover, and weary and he didn't like it.

Why, why you gotta be so blind?
Won't you open up your eyes?
It's just a matter of time 'till you find
He's no good, girl
No good for you
You better get to getting on your goodbye shoes and go, go, go...
Yeah yeah yeah, he's low
Yeah yeah yeah

He wanted to know how she could sing like that, with so much power and strength, when she wasn't even really trying. She was amazing. He couldn't understand it at all. She was one of those people he just couldn't imagine singing anything, never mind a song like that, with strong vocals.

He didn't realise he was staring at her until she moved find her sunglasses, reaching past him to the glove compartment, still singing like nothing he'd ever seen before. Even bent over, straining her lungs and diaphragm. When she put the dark glasses on and returned her gaze to the slowly moving traffic, he had smile. Did she realise how sexy she looked, singing with her sunglasses on? If he thought he would get off with it, he would have kissed her there and then. But that would only end in disaster.

Oh, he's no good, girl
Why can't you see?
He'll take your heart and break it
Listen to me, yeah

Why, why you gotta be so blind?
Won't you open up your eyes?
It's just a matter of time 'til you find
He's no good, he's no good

Won't you open up your eyes?
It's just a matter of time 'til you find
He's no good, girl
He's no good for you
You better get to getting on your goodbye shoes...

When she finished singing, the silence seemed louder to Gerry than her voice had been. He stared at her in a state of mild shock. How the bloody hell did she hide that her whole life? When they reached another set of traffic lights, she glanced around at him, taking in his expression.

"What?" she demanded. Had she not realised she was singing so potently and so brilliantly? Did she not understand how good her voice was?

"You can sing," he said to her. Wasn't it blatantly obvious?

"No, I can't," she argued. "I sound awful when I sing," she added.

"What the bleedin' hell was that, then?" he asked her. What was this? How come she didn't know she could sing?

"What are you on about?" Gerry was confused now. She didn't know she was singing along to Carrie Underwood, and sounding just as great as the original singer, if not even better. How could she not realise she was singing?

In her defence, she had a lot on her mind. He knew she was hurt over her boyfriend and whatever happened there, and he knew this case was important to her, so she did have a lot to think about. Maybe it was an automatic thing, like it sometimes was with him. He had been told by his daughters that he started singing as soon as he heard a song he knew. Maybe Sandra did the same and didn't know she was doing it.

So Gerry decided to play silly beggars until he decided what to do with this new information about his strong, sexy guv'nor. "Nothing," he replied. "Must have been daydreaming," he gave an excuse. He knew she was too tired and hungover to argue with him, so she shrugged and returned her gaze to the road in front of her, finally clear of traffic.

She didn't speak again for a good ten minutes, and he saw that she was thinking things over. She threw him her phone and said to him, "There's a name in my contacts. Mark Howe."

He scrolled through the phone until he found the name. "Yeah, got it," he told her. "What now?"

"Delete it," she ordered him, the bitterness clear in her voice. Gerry didn't ask anything else, knowing it was a dangerous road to take with Sandra, especially when she was in a mood this this one. So he just did as he was told, and handed the phone back to her.

They reached their destination – the pub their victim used to frequent in the late 1990s – and she agreed to sit down with him for a drink, since, technically, they were off duty. He was still a bit shocked at her hidden talent, and even more so that she didn't even know it existed. Something had to be done about that, he decided.

He would have to work out how to proceed with this new side to Sandra Pullman. She didn't even know her own ability. After all, all that talent couldn't go to waste, could it?

Hope this is OK!

Please leave a review and tell me what you think!

Sarah x