Name: Our Little Secret
Summary: AU. After an argument, Rose decides to stay home for a while whilst the Doctor travels with Donna. Then Jack Harkness appears and learns Rose's little secret and the reason behind the argument and he's determined to bring them back together but can he do it alone? Enter Donna. 10/Rose Donna/Jack.
Disclaimer: I wonder how many of you are actually reading this? Well if you are, you are amazing! Oh, and I don't own Doctor Who!
Authors Note: Well, I was really excited by this chapter and began to write it about five minutes after posting the last one because I was so looking forward to it. I really hope you enjoy it and please tell me if you do but don't be afraid to tell me what needs improving. So yeah, I hope you enjoy! And I also apologize if I didn't Review Reply to you but some of them I read at school and couldn't log on to fanfiction to reply (as it was blocked). ANYWAY, enjoy.

"That was so cheap!" Donna exclaimed for the thousandth time as the four of them stared round at the bright lights, the giant rides, the queues of people. They listened to the sound of laughter, the sound of excited chatter ("Oh my gosh, that ride was awesome!" "Dad, please can we get some candyfloss?!"), the sound of screams on roller coasters. Rose could smell popcorn and candyfloss and hotdogs and burgers and it made her smile.

"Oh look, they have those tacky stalls! I love it!" Jack grinned, as he pointed to stalls that were selling jewellery and souvenirs whilst others sold 'exotic' food and some were a little more unusual, selling magic potions and ingredients or offering beads that would bring you luck, things like that.

As they wandered – taking in everything before they got stuck in –, Rose pointed out a row of caravans. Some offered to teach you how to juggle, whilst another taught you how to perform a magic trick and there was one where you could have your birth chart done, your astrology chart done and then – of course – fortune telling.

"There always has to be a fortune teller." The Doctor murmured.

"We're going there later." Donna told Rose who laughed in agreement.

The excitement of the place was infectious with the swarms of people, the laughter, the music, Rose felt happy and she loved it.

"It's a bit like the carnival on the Moon in the sixty-third century." Rose told the Doctor who laughed and nodded in agreement.

Donna smirked, this was good, the carnival excitement meant that they were forgetting their anger, you literally couldn't be angry at someone in a place like this. It made Donna feel like a kid again.

Then Jack had to ruin it all, "Where's the man of the hour then?" Jack asked, "Sam Davies." He then got the pang of familiarity again.

"I'm not sure…" Rose took out her phone, "Oh, I have a text from him… he's by the candyfloss."

"I feel a bit sorry for him really," Donna announced as they began walking back towards the entrance, which was near the candyfloss, except for the Doctor who seemed less than eager to get there, "His suddenly forced to spend all evening with people he doesn't know!"

"He can leave at any time." Rose pointed out.

"Well, Rose, I don't care how much he flirts. You aren't both going to go off and leave us, understand?" Jack told her warningly, "I want you where I can see you at all times!"

Rose laughed, "Yes sir."

The four of them talked for a while until suddenly, a figure appeared in front of them, "There you are!"

Jack gasped out loud and his eyes widened so largely that Donna thought they were going to pop out for a second, "You!" He exclaimed, "I knew I recognized that name from somewhere!" Then his face twisted into scorn, "You." He repeated in disgust.

Donna and Rose were both staring at Jack in complete bewilderment whilst the Doctor stood there grinning like an idiot at Jack's reaction.

Sam's eyes were equally wide and he shot Jack a desperate look, "Uh…"

"You two have… met?" Rose asked questioningly.

"You could say that." Jack gave Sam a deathly look before smoothing out his brow, "I asked him for directions to your place the other day." He cleared his throat, "Let's start over. Captain Jack Harkness." He held out his hand, Sam shook it nervously and tried not to wince as the Captain practically broke his fingers.

"You met Donna earlier…" Rose reminded, "And then this is… the Doctor."

Sam held out his hand but the Doctor ignored it, studying his face instead, Sam cleared his throat awkwardly and dropped his hand, "Doctor, what, sorry?"

"Just the Doctor. Don't ask." Rose shrugged, waving a hand before giving the Doctor the evil eye, "Where do you want to go first?" She asked.

"Can we go look at the stalls and things first?" Donna begged, "I'd rather blow most of my money there than on the rides!"

"Most of the rides are only about twenty-five pence." Sam pointed out helpfully, "So I bet you'll be fine."

Donna nodded but as the five of them began walking, Jack grabbed her arm and pulled her back slightly, "Oh, my GOD!"

"What? Is it about how cute he is? I know! What did I tell you?!" Donna beamed, putting emphasis on the 'what'.

"No!" Jack hissed, "I met him when I was coming to the Tyler's flat. There I was, walking along, when this guy tries and hits me from behind and tries to steal my wallet. So I turn round and smack him in the face and I notice that there are two of them. One of them falls to the ground, unconscious, and the other begs me not to kill him and the other one was Sam!"

"Wait you mean… Sam tried to mug you? Or at least, assist on it?"

"Yes!"

"Well… this is good, isn't it"?

"No!"

Donna looked lost, "Why? Can't we just tell Rose the truth?"

"No because then the Doctor will just get really smug and that will make Rose hate him!"

"So, what do we do?!"

"I don't know!"

"What are you two whispering about?"

Jack and Donna jumped a mile in the air as they turned and saw the Doctor staring at them with a raised eyebrow, Sam and Rose were walking a little bit ahead, not even realizing the others had stopped.

"Nothing! Why, what did you hear?" Donna asked quickly.

The Doctor furrowed his brow, "All I heard was Jack say 'I don't know' and then you two practically flew in the air. What's going on?"

"Nothing! We were just talking about how hot Sam was." Jack blurted. The Doctor and Donna stared at him, Donna looked as if she was going to explode with laughter and the Doctor briefly looked as if he was going to punch him for addressing Sam's attractiveness

"Right." The Doctor rolled his eyes to the back of his head as he turned around and continued walking.

Donna clamped a hand over her mouth to stop herself from laughing and managed to hiss, "We were just talking about how hot Sam was?"

Jack slapped his hand to his forehead, "It was the first thing that I thought of!"

"Nice one, dumbo!"

Jack ignored her, "I think we go into Plan B of our mission!"

"Already? But we haven't even done anything yet!"

"Just follow my lead." Jack cleared his voice and spoke loud, causing Rose, Sam and the Doctor to face him, "Where are we heading?"

"I wouldn't mind going to the fortune telling. I know, I know, its tacky but its always gives me goose bumps." Rose suggested.

"You would rather go and see some fake little fortune teller than go to the planet of prophesies!" The Doctor shook his head, "Remember, I asked you last week and you were like 'Ooh no, I don't believe any of that'." He mimicked.

Rose grinned, "And you were like 'I bet we'll go to some stupid carnival – probably on Earth – and you'll see a fortune teller and go 'Oooh I want to go, its tacky but I love it'."

The Doctor chuckled, "Yes! And now you owe me a fiver because you said that you wouldn't do it!"

"How about I just pay for your food tonight?" She suggested with a smirk.

"You have yourself a deal!"

Sam looked completely mystified, "What are you two on about? Planet of prophesies?"

Hearing Sam speak seemed to remind the two that they were mad at each other – this was getting on Donna's nerves now – and Rose turned to him, "Its… slang. So, yeah! Let's go! Please." She smiled at her friends innocently.

"I'm out." Sam pulled a face, "I don't believe in any of that stuff. C'mon, let's go somewhere more interesting."

Jack widened his eyes at Donna, this was the perfect opportunity! Donna coughed, "I'd love to go to the fortune tellers with you Rose!" Donna insisted, standing next to the blonde, "Come on, Doctor!"

The Doctor shrugged and since he didn't want to agree with Sam, he stepped next to Donna.

"Well, I'm not one for fortune telling. I might go get me a drink." Jack looked at Donna, prompting her.

"There you go, Sam!" Donna exclaimed, "You can go with Jack whilst we have our fortunes told."

"Oh… I…" Sam suddenly looked uncomfortable.

"We'll see you in like ten minutes then." Jack cut Sam off and looked at the girls and the Doctor. Rose just nodded with a smile and turned around but the Doctor gave Jack a questioning glance before following them.

As soon as they were lost in the crowd – with Sam looking like a helpless sheep – Jack grabbed Sam's arm and spun him around to face him, "You," Jack hissed, "And I have a bit of talking to do."

Sam gulped.

"All a bunch of rubbish, you said." The Doctor murmured in Rose's ear as the waited in queue, it was short and they were next, so they weren't complaining.

Rose laughed, "Much better than anything you'd get on Earth, you said." Rose mocked and they grinned at each other.

Donna smirked to herself; it was so much better without stupid Sam! But maybe she could accidentally get lost so that they had time to be alone and so that she didn't have to feel like she was playing the third wheel.

She could steal Rose's phone too, so that when Donna joined Jack and Sam, and Sam felt like the third wheel, he couldn't text Rose for help and would end up going home, leaving everyone happy – except for Sam! It was perfect!

"Do you think there's gonna be a crystal ball?"

"Nah." The Doctor shook his head.

"I do!"

"How much?" He teased.

"One whole pound." Rose challenged.

"Can I risk it? I think so." The Doctor laughed.

Suddenly, the door swung open, "Enter." A mystical voice suddenly whispered.

The three gulped at each other and entered. A lady was sitting behind a circular table with long black hair and extremely green eyes and a mysterious smile on her face. Rose was gutted to see there was no crystal ball and gave the Doctor a dirty look who just smiled smugly.

"Who would like to go first?"

The Doctor gave Rose a little push, "Go on, Rose, you were the most excited." He whispered in her ear.

Rose shot him another dirty look – although it didn't have any real negative emotion in it – before sinking into the chair in front of the woman.

"Hello, my name is Cat." The woman announced in a mystical voice, "I am here to tell your fortune, to tell you the answers you seek and to help you see the truth. Please, hold out your hands."

Rose gulped as she did so and Cat took them.

Donna and the Doctor glanced at each other with grins on their faces, both wondering if this was going to be some scam.

"Most interesting…" Cat murmured, "You don't have a very stable life. You travel… you travel… very far." She raised her eyebrows in surprise.

Rose nodded meekly and Donna mouthed 'one point' to the Doctor.

"Yes." Rose squeaked.

"You love the travelling but you miss your mother a lot… you feel guilty about leaving her alone as your father is not around anymore."

The Doctor looked at Donna, 'two points'.

"Right."

"Oh! And you recently got an old friend back in your life. A friend you missed very much and you are very excited to see again." Cat smiled, "Don't fear, you wont loose him anytime soon. He is forming an attachment with another friend."

A bigger grin stretched onto the Doctor's face and he turned to Donna with both of his eyebrows raised suggestively, 'three points!'

Donna's cheeks burned, was she the friend that Jack was forming an attachment to? She secretly hoped so.

Cat smiled, "One of your friends – one that you travel with – you are extremely close to her, she is like a sister… except you are keeping big secret from her. You want to tell her but you can't."

The Doctor's smile had slipped slightly but Donna put up four fingers.

Rose glanced nervously at Donna who raised an eyebrow, "Uhuh…"

"And the other friend…" Cat stared at Rose's hands for a moment before lifting her stare and burned her gaze into Rose's eyes, "No, I am wrong. He isn't just a friend…" Cat looked frustrated, "I am so confused!"

"What about?" Rose whispered.

Cat swallowed, looking confused, "You… you are either close with this man – extraordinarily close with him – or lovers. I am not sure which!"

Donna contained her snort of laughter and nudged the Doctor, since they all knew which 'friend' this was.

"Oh, but look," A disappointed shadow fell on Cat's face, "Your… relationship is broken. Conflict erupted between you two over… over a secret."

Rose swallowed and Donna fixed her gaze into the Doctor's but he was staring right at Cat, his smile completely vanished.

"You might loose him!" Cat cried, "If you do not act quickly then it might be impossible to fix! With a bond that is that tight, you cannot let it break! But there is another… another trying to fit into your relationship."

"And?" Rose asked eagerly.

"He will not break the bond… I think, only the two of you can break the bond but this other one will try and his actions may lead to one of you ending the bond… Be careful, he is not to be trusted. And someone knows that. They will end up getting hurt."

Donna gasped; she hoped that she didn't mean Jack would get hurt because of Sam.

"Oh, look." Cat smiled, "You have two angels looking over you. They will do anything to fix you. One knows the secret, one does not but they will work together to fix the bond." Cat looked pleased.

"The… bond." Rose repeated.

"Yes, the bond between the Oncoming Storm and the Bad Wolf."

Rose gasped and leapt out of her chair as the Doctor straightened up, his eyes alert and suspicious, "What are you?" The Doctor snarled.

Cat smiled, "I am Cat. I am here to tell your fortune, to tell you the answers you seek and to help you see the truth."

"So, here's the deal. I love Rose, very much, but I don't want her dating scum like you." Jack announced as he and Sam walked around.

Sam swallowed, "Look, we got off to a bad start. Please. I was only helping Jimmy, it wasn't my idea!"

Jack shot Sam the dirtiest look he had ever seen, "So, do you think that's what a Nazi said after World War 2? 'I was only helping, it wasn't my idea!'" Jack spat.

"There's a difference between a bit of harmless street mugging and the Holocaust." Sam told him meekly but looked ashamed.

"I don't trust you, kid and Rose really doesn't need an untrustworthy guy in her life."

"You don't know me! And I really like Rose!"

"Well, tough."

"What do you mean 'tough'?"

"She's taken."

"By you?"

Jack rolled his eyes, "No."

"By the Doctor guy? Are they a couple? She told me she was single."

"Err…. Well, she is."

"Then how is she taken?"

"Rose travels around a lot. Do you really want a long distance relationship? You don't know who either of you might meet."

"Rose has to settle down sometimes and besides, Rose has only been back for a couple of days and we're already dead close. We've practically done nothing else but spend time together, maybe she wont want to go back!"

Jack fought the temptation to hit him, even though he desperately wanted to, "You don't understand what you're messing with." Jack told Sam through gritted teeth, "Rose loves her life and nothing – especially not some ex-boyfriend – is going to make her stay."

"Well, we'll see won't we?" Sam snapped, "Rose really likes me and I think she'll stay."

"Your wrong."

"Oh yeah? Well, when we were at dinner yesterday, why did she tell me that she was getting bored of travelling and she was thinking of staying home for a year – at the least."

Jack stared at Sam; unsure about whether he was making it up or not, "Did she say that? Did she really?"

Sam looked incredibly smug, "Yep. Plus, she said that there were so many secrets on their trips and she couldn't stand the arguments anymore, she said she thought it might be best if she stays home! So, we'll see who Rose chooses, wont we?" Sam laughed, still sounded smug.

Jack just stared at him, Rose wouldn't say that? Would she?

"What's the matter? Cat got your tongue?" Sam laughed smugly again, raised his eyebrows at Jack before continuing walking, leaving Jack standing speechless.

Authors Note: Oh dear. Sam annoys me. I know his my character but he still annoys me! So, what did you all think? Tell me all! And if you any questions, please ask and I will reply either in the next chapter or in a review reply.