**Notes: Important conversations and, oh my, is that ANOTHER Doctor? Oooh, this could be interesting! I hope you all like it. Please keep commenting, I really appreciate it. And I just had a brilliant idea for the adventure to start around chapter 12... it was bugging me for a while, but I think I've got it. All the same, if there's someone you want them to meet, let me know.**

Chapter Three – Make Yourselves At Home

The Doctor entered the console room and noticed his counterpart in the area below, tinkering with the TARDIS as he often did. The help would be appreciated with that, so he didn't begrudge him his exploration of the new layout. Climbing the stairs to the bookcases, he found Rose curled up in his burgundy leather chair, reading some trashy novel. He stared at her a moment in thought. Did he need more chairs here? Should he ask her to read somewhere else? This incarnation's default reaction was to shoo everyone out of his personal space, but this was Rose.

He continued to think on the subject while he looked at the bookshelves for what he needed. It was nice having them here, but it had been a very long time since anyone else travelled with him full time. Clara never really stayed for long. Not since before he had lost Amy and Rory had anyone shared the TARDIS with him. It had been about seven hundred years. Granted, for a good portion of that, he didn't have the TARDIS either. He had lived in a funny little house on Trenzalore, fighting Cybermen and Daleks and fixing toys like Father Christmas.

They were here to stay and the TARDIS was their home too. He asked the TARDIS to put two more chairs near his, expanding the space to make a shared sitting area. Immediately, two more chairs shimmered into place. One matching his already present leather chair and the other was a similarly coloured papasan chair with a few throw pillows, that he guessed the TARDIS thought Rose would prefer.

Rose smiled at him, "Thank you, Doctor. I presume that means that you want your chair back? I've warmed it up for you." She winked at him then and he felt a wave of affection from her through their bond as he returned her smile.

"I would appreciate it. That one looks more your style anyway," the Doctor replied.

Rose moved to curl up in the squishier chair and the Doctor sat in his usual spot. They both sat reading for a while, but the silence was awkward. It was worse than the first time she had been with him when he regenerated and they needed to find a new normal. He certainly wasn't going to go snuggle in the media room with her to watch movies like they used to do. Even giving into the hugging (and other activities) with her, would not make him enjoy that again. Which of his current interests could he share with her now? An idea struck him then, something he hadn't ever done with her, and he leapt to his feet, running down towards the console while sending the thought to the other Doctor. Rose wondered for a moment, what new idea had caught his attention, but knew they would let her know if she was needed.

Doctor Tyler walked up the stairs while wiping some TARDIS grease off his hands with a rag. He smiled at the Doctor and moved to help him with this treat for Rose. Doctor Tyler wondered for a moment why he had never done this with her and decided that it was probably because it would have seemed too romantic and he had been avoiding things like that while he was travelling with her.

The Doctor walked back up to where Rose was still reading once they had arrived at his intended destination. "There's something I want to show you, Rose. Come on," he said as he took her by the hand and pulled her impatiently down towards the main area of the console room.

Arriving at the doors, both Doctors opened them wide and watched her face for the reaction they knew was coming. The look of awe and wonder that lit up her face (any face she wore) was the greatest thing in the universe.

Outside the doors, Rose could see that they hadn't really landed. They were hanging in space looking out at the most gorgeous red and pink nebula she had ever seen. She knew this was the Rose Nebula; she had seen pictures of it in her studies while working on the Dimension Cannon and the stars disappearing. But to see it in person, hanging here in space was something completely different. She felt a hand on each of her shoulders as both of her husbands moved closer to look at the sight with her.

"I've always wanted to take you here, Rose. But as lovely as the nebula is, it isn't half as beautiful as you," the Doctor said. He was excited to share the next part of his plan with her, "How would you like to fly? The TARDIS can expand her shielding and you can float in space. We'll hold onto you, so you won't float away."

"Don't you want to fly with me?" she asked. "Couldn't we use a rope or something and all three of us float outside?"

"Of course we could," answered Doctor Tyler.

Soon, there was a rope fastened to Rose's waist and one Doctor holding onto each hand as all three of them floated outside of the TARDIS doors in the light of the Rose Nebula. She was giggling and they smiled at her obvious enjoyment of their surprise for her. Rose pulled them both into a hug and Doctor Tyler nuzzled her ear while the Doctor kissed her forehead.

"I've been thinking," she said as they drifted lazily together. "You two were arguing about names and I think we do need to figure out something. You are both the Doctor, that will never change, but in an emergency as well as in introductions, there needs to be a way to differentiate between you. Do you two have any preferences?"

"I've used a lot of different names in my life," the Doctor said. "You know that I can't use my true name. Only you get to know that. Theta Sigma was my nickname in the Academy. John Smith I've used occasionally almost since I started travelling. I've used past companions' names from time to time, but I don't know what would be fair to both of us."

Rose thought for a moment, "What about splitting up Theta Sigma? One of you is Theta and the other one Sigma? It's not ideal, I know, but nicknames like Scotty or Tigger would only really apply to your current regenerations. This should be something that would last."

"All the more reason to make sure that we are all happy with whatever we decide to use," Doctor Tyler added. "I've never been particularly fond of Theta Sigma, to be honest. And this would not be like when I took John Smith in the parallel world. As you said then, the people who mattered knew who I was and the name was just a cover. This, what we choose now, becomes what the people who matter will call me. This isn't the time for John Smith."

"Theta Sigma, while I understand why you brought it up as a possibility, never meant anything to me, Rose. It was a designation to be used until I chose my name," the Doctor said. "And you're right, that it shouldn't be something that only applies to this regeneration. The three of us will have a very long life together and names hold a lot of power. Rose Tyler has been a name that has had significant power over me for a long time now." He smiled at her with a slight twinkle in his blue eyes. Rose could see some of the weight and darkness and doubt that had been hanging over him, lessening bit by bit.

"You are still both the Doctor. And while I have absolutely no trouble with sharing the name Tyler with both of you, it is true that it's not fair for only one of you to have it. You can both use it, if you want, and I think you should both keep Doctor. But you're right," she said as she looked at Doctor Tyler, "this isn't the time for John or James and this isn't something to take lightly. So, as much as we need to figure this out, let's all think about it for a while. Agreed?"

They both nodded and held her tightly. When they finally released their embrace, Doctor Tyler pulled them back towards the TARDIS doors. The time for heavy discussions was over for now. They needed to have some fun.

"Rose, what would you say to an amusement park?" Doctor Tyler asked.

Rose giggled gleefully and clapped her hands, but the Doctor rolled his eyes and frowned. "An amusement park? Really? What are we children now?" the Doctor grumbled.

"Well...," Doctor Tyler said as he looked towards the ceiling. "In one way, I'm actually only about a year old... in other ways, I'm over nine hundred. But, Rose, is still in her twenties. While I know that you've decided to take the old and grumpy bit this time around, remember what we used to say in our fourth life."

The Doctor sighed, "There's no point in being grown up if you can't act childish once in a while. Alright, since it will please you two, we'll go. At least it won't be boring. The last time I tried to go to an amusement park it was taken over by Cybermen, but I'm sure we can find something more troublesome than that with you around, Rose. And I have had enough of Cybermen for a while now."

The trio piloted the TARDIS smoothly to materialize just inside the gates of the most famous amusement park on Transinia 3. As they exited their magnificent time ship, Doctor Tyler explained to Rose where they had landed, "We are on Transinia 3, in the Tadpole Galaxy, approximately four hundred and twenty million light years from Earth. I've mentioned this planet to you once before." He smirked at the memory, "I told you, they have great pie here."

Rose laughed, "Is this also the place where they'll burn you at the stake if your hair is green then?"

Doctor Tyler laughed, "Yes, indeed. So, it's a good thing that you decided on just dying it blonde again for now."

The Doctor's eyebrows furrowed (even more than usual) and he said, "You didn't regenerate with it this colour then? Why would you change it?"

Rose took both of their arms and started walking them down the sidewalk, "I was just used to being blonde. Maybe I'll be more accustomed to my natural colour changing as time goes on. For now, I like it this way. Don't you like it, Doctor?"

"Umm, yes!" he replied quickly, looking slightly panicked. ~'Was that the right answer?'~ he thought to the other Doctor.

~'Ha ha, I think so,'~ he responded.

She looked around thoughtfully and said, "Hang on, you've taken me here before." The sky was a light purple colour and there were two small suns in the sky. The temperature was warm and pleasant. There were tall roller coasters, a ferris wheel, a carousel and several little gift shops and treat stands along the sidewalk. She definitely remembered being here before, even the weather was the same.

The Doctors looked at each other with matching confused expressions. "No, I don't think so," said the Doctor.

"I'm quite sure that I've never brought you here before, love," said Doctor Tyler.

"And I am positive that you have. I remember wanting to go on that roller coaster, right there," she assured them as she pointed towards a large purple structure to their left. "It was right after we were in 1987," she frowned at the memory of watching her father die. "You were trying to cheer me up, I think. Right before we met Jack. If you don't remember it, does that mean that we'll be meeting our past selves here? Why do I still remember it then? It's fuzzy though... something happened." Her brows furrowed in thought as she tried to remember exactly what happened when they came here before.

Doctor Tyler sighed, these meetings with his past selves were getting to be ridiculous. Within the last month or so, they had met up with his second, third, sixth and eighth selves while trying to find his thirteenth and being sent to his fourteenth instead. "It probably does mean that we'll be meeting up with ourselves. This could be awkward to explain. Not only did you not know about regeneration yet, but there's the issue of you regenerating and there being two Doctors now."

"Hang on, I think I remember... We were heading towards the roller coaster and then there was some kind of explosion and we were separated. Then, I woke up on the TARDIS and you said they had closed the park," Rose told them.

"It might be best," began the Doctor, "if only one of us spoke with the past Doctor. Less to explain regarding Rose's regeneration and us splitting into two. He'll feel you, Rose. Probably best then, if you talk with him and we'll go find the past you to rescue."

"You really think that I can convince him to sit around chatting with me, while leaving the two of you to have all the fun?" Rose asked them incredulously.

Doctor Tyler rubbed the back of his neck and scrunched up his nose, "Well..."

The Doctor patted her on the shoulder as if it was all settled, "Absolutely. Have fun."

At that, the Doctor pulled Doctor Tyler off with him to find a place where they could hide and observe what would happen to the past Rose and follow her. Doctor Tyler would be able to feel her presence due to the strength of their bond, even if she wasn't telepathic at this point in her timeline.

Rose shook her head as she watched them run off together. She looked around the park a bit as she waited for the past TARDIS to arrive. There seemed to be a few shady-looking characters looking around nervously near the base of the ferris wheel. She guessed that they were probably the cause of the explosion that she remembered and tried to keep an eye on them.

There were four of them standing around together watching everyone that passed and occasionally glancing behind them. She noticed that one of them seemed to have a slight deformity of his face and another was missing his left arm. The rest looked fairly normal as far as she could see. They all wore hoodies which is what caught her attention because it was too warm for anyone to want their hoods up, let alone a whole group of people.

She felt a wave of shock from the past Doctor as soon as he exited the TARDIS and sensed her presence. She remembered him being a bit distracted when they first got here before. She connected with him for a moment, ~'I'll speak with you soon. Pay attention to your companion.'~

~'Who the hell are you? All of the Time Lords were killed in the War!'~ he thought back to her forcefully.

She wasn't expecting him to be upset with her. Rose had hoped she could save this for when she was talking with him face to face, ~'Calm down, love. This is extremely complicated and difficult to explain, but I'm Rose. Now pay attention to what your Rose is saying and I'll be with you shortly.'~

~'But that's...'~ his brain seemed to be shorting out at the very thought of it.

~'Yes, I know, impossible,'~ Rose thought back to him and closed off the connection for now.

She could see them from where she was standing, but noticed that the men she had seen earlier were no longer near the ferris wheel. Suddenly, she saw what was about to happen and ran towards the closest Doctor (which happened to be the one in leather) and tackled him to the ground behind a low stone wall and into the bushes.