2nd Doctor: Ah Jamie there you are. I was going to go after the Daleks to get you but the TARDIS wouldn't do anything until now.

Jamie: Oh aye.

2nd Doctor: Seems you've been redecorating. Hmm don't like it.

9th Doctor: I was just about to track the Autons on earth. I located them at a store.

(10 and 11 look at each other)

9th Doctor: What? Does something go wrong?

10th Doctor: No you just meet a new companion.

2nd Doctor: So is this what I succumb to? Travelling with young teenage girls?

(10 and 11 look at 9)

9th Doctor: What?

Becca: Listen shorty this is my first time meeting the guy!

2nd Doctor: I'm just as tall as you!

9th Doctor: stop it you two.

2nd Doctor: Fine. Now then, who's the latest model?

(9 and 10 point at 11 and 11 raises his hand)

2nd Doctor: Bowtie?

11th Doctor: Yes bowties are cool. Eleventh incarnation. Tenth regeneration.

2nd Doctor: I have to agree with you.

10th Doctor: I hate to cut in but 2, you're sounding a lot like the original.

Jamie: Must be the gray hair.

2nd Doctor: I'm only acting grumpy because I was on a nice vacation with Jamie and Victoria and it's been disturbed.

11th Doctor: Alright then. Where are you in your timeline 10?

10th Doctor: Well, I'm travelling with a fellow time traveller.

9 and 11: Romana survived?

10th Doctor: Not her.

2nd Doctor: Survived what?

9th Doctor: You'll find out in your 8th body.

11th Doctor: If you're not travelling with a Time Lord, who are you travelling with?

10th Doctor: He'll be materializing shortly.

(We are greeted with a burst of light and after the light, a figure appears. He's wearing a jean jacket, vest, and anything else that looks like it's from the 80s)

10th Doctor: Everyone, meet Marty McFly from 1985.

Marty: Doc, this doesn't look like 1885.

10th Doctor: That's because we're in the TARDIS. This is how it's going to look like in the future.

Marty: Who're all these people?

10th Doctor: The one with the grey hair is my second incarnation, the one with the leather jacket is my ninth incarnation, and the one with the better bow tie is my eleventh incarnation.

Marty: What do you mean incarnations? I thought there was only you.

10th Doctor: That's a little hard to explain, really. Oh, I just thought of something.

(The pinstripe suited fellow puts his hands on the 80s kid's head)

2nd Doctor: Oh this is going to be painful.

Jamie: Doctor, what's going on?

2nd Doctor: He's about to prepare a Gallifreyan Mind Meld.

Becca: What's a Gallifreyan Mind Meld?

9th Doctor: Watch.

(Ten bangs his head against Marty's and they both scream in pain)

Marty: Oh, now I get it. You're an alien from way deep in space who has the power to regenerate into different incarnations, which explains their presence.

10th Doctor: I also should've mentioned the fact that there are multiple incarnations present, and you know what happens next if we're here too long.

Marty: And I can't spoil it for the 2nd incarnation.

10th Doctor: Oh and that's Jamie and…

Becca: Becca.

10th Doctor: Becca.

9th Doctor: So, what did you bring us here for? I have Autons to track down.

10th Doctor: I have 1885 to go to.

2nd Doctor: And I have to go pay a visit to a small laboratory.

11th Doctor: Just to speed things up, let's just have the meeting. Contact.

2nd Doctor: Contact.

9th Doctor: Contact.

10th Doctor: Contact.

(Marty walks to Jamie and Becca)

Marty: Pleasure to meet you.

Jamie: And you.

Becca: So, how long have you been travelling with him?

Jamie: For as long as I can remember.

Marty: I've only met him recently. What are they doing?

Becca: Jamie?

Jamie: I don't know. This is the first I've seen him do it.

Marty: Well, it does look like they're almost done.

Becca: Yeah.

Jamie: How do you know?

Becca: Well, their faces seem to be getting more relaxed, but tense.

Marty: It's like waking up from a dream.

Jamie: I see. So, they're just contacting each other through a dream? They did say contact after all.

Becca: I guess they are. Maybe, they're psychically linked to each other.

Marty: They are the same person.

Becca: Oh yeah.

(The Doctors open their eyes and have an adventurous look on each of their faces. Eyes wide and smirking)

2nd Doctor: Do you think it will work?

11th Doctor: It has to.

9th Doctor: Come on, let's go. We have to hurry before a Belgium sized black hole.

Jamie: A what?

2nd Doctor: We'll explain along the way. Now, we must go.

(He ushers everyone out of the TARDIS)

Thanks to Doctor McFly for letting me use his crossover fanfiction canon in this story for Marty to appear. And I intended for the 2nd Doctor to be as cranky as the 1st one. He's nearing the regeneration into the 3rd Doctor.