Doctor's POV:
Rose didn't seem to notice how horror-struck the Doctor as, and he was so dazed he barely heard her response, "Alright, did she say how long she would be?"
Jackie caught his eye but seemed to brush off his reaction, "She said she was in the area and would be-" She was cut short by the chime of the doorbell, "Right here." As Rose walked to answer the door, he leaned against the TARDIS, shell shocked, Jackie casting him another strange glance.
Rose's voice echoed down the front corridor from the door, "Hey, what's up?"
Martha's laugh followed, "Have I ever got some stories to tell you! I bet you won't believe them!"
Rose seemed amused as she spoke, "Oh I bet I will, come on in." The sound of footsteps closely followed Rose's words.
When they entered the room the edge of the door way stood between him and Martha, so he could just barely see her but she couldn't see him. He debated slipping into the TARDIS to hide but he knew she would see it and recognize it immediately, so it was better to face her. He was torn from his train of thought as he saw the engagement ring on her finger, and he was instantly happy for her, she had found someone who loved her as much as she loved them.
Soon Rose caught his eye and spoke again, "Oh, there's someone I want you to meet!" Martha walked forward and locked eyes with him and stopped dead in her tracks. "This is the Doc- John Smith."
Martha shook of her shock, and there was a mischievous glint in her eyes that told him she had the intention of pulling a prank on Rose. "It's nice to meet you Mr. Smith, I believe you were my patient at the hospital one day." Rose looked confused and the Doctor was still too stunned to move when Martha broke down laughing, "I'm sorry! I can't help it!" She laughed.
Rose looked from the Doctor to Martha, "Would someone please tell me what's going on here?"
Martha managed to get a few words out between her fits of giggles, "I know the Doctor."
Rose's POV:
As Martha spoke, things began to make more sense, Rose had pretended not to notice how terrified the Doctor looked when her mother had mentioned Martha, and knowing him, he probably thought he was betraying Rose by having another companion while she was gone. Truthfully she was glad he hadn't been alone, he needed someone by his side to keep him on the right track. "I thought he seemed a bit off when mum mentioned you." Rose smiled as she saw the shock and horror on the Doctor's face. "So you traveled with the Doctor then?" She asked Martha.
Martha looked happy to explain, "For a while," She paused for a moment. "In the end it all just became a bit too much for me, you'll understand what I'm talking about one day Silvia."
Now it was the Doctor's turn to be confused, the horror and shock in his eyes was replaced by befuddlement and curiosity, "Silvia?"
Rose couldn't help be notice the look of sadness her mother cast at the Doctor before Rose shook her head, turning her attention back to Martha, "That's not my real name."
Martha did a double take, looking between Rose and Jackie, "Wait, what? That's what you told me to call you."
Rose breathed deeply before responding, repressing the memories, "Exactly…not many people know my real name anymore…long story short…I'm supposed to be dead. At least here I'm supposed to be dead."
Martha seemed puzzled, "Then if you don't mind my asking, what's your real name?"
Smiling sadly she spoke, "Rose Tyler."
The blonde was shocked as Martha stepped back as if she had been hit by a physical blow to the chest, "Oh my god…he found you!" Rose looked at the girl strangely, "You're the ever elusive Rose Tyler! The girl who got stuck in the parallel universe?! The Doctor would never stop talking about you!" She gasped. Rose glanced over to see the Doctor inching towards the TARDIS's doors, his cheeks flushed. As soon as he met her eyes, he bolted inside, closing the doors quickly behind him. "Someone's embarrassed!" Martha piped before joining in Rose's laughter, "But I'm not lying; he would never stop talking about you and all of your adventures."
Rose finally managed to get control of her laughter, "I'll remember this, I might be able to use this to get back at him for something later." He comment only sent them spiraling into hysteria again.
Finally Martha spoke up again, he voice still cracking as she giggled, "I can't believe I've been friends with Rose Tyler and didn't know it!" She cried, and Rose simply shook her head.
Doctor's POV:
"What will Rose's reaction be to me having another companion?! The Doctor couldn't stop his mind from spiraling out of control, "And above that, one of her friends!"
He rushed over to the TARDIS's main monitor that seemed to be up and running once more and trained it on the two of them. Two both his shock and relief, they were laughing, the Oncoming Storm let out a sigh and leaned against the console, things could have gone much worse. The last thing he needed to do was tear up a friendship.
Without thinking, he began walking deeper into the TARDIS, padding quietly through its winding corridors. When he finally looked up he saw a massive room of trampolines in front of him. Stepping in to what had always been Rose's favourite room, he laid down upon the bouncy surface, gazing up at the ceiling patterned with a star map from Gallifrey. The longer he lay there the more tired he became, and even though he didn't mean to, he fell asleep.
Rose's POV:
Martha and Rose walked into the TARDIS, expecting to see the Doctor standing at the console where he normally spent most of his time, but as they stepped in the doors' he was nowhere to be seen.
Martha was the first to speak as she looked around the room that was much bigger than the box's outward appearance in awe, "Where do you think he is?"
Rose knew just how she felt, just how amazing it was to come back to the time machine, after you think you've left it behind for good, "Let's go find out!"
Martha smiled, "You lead the way, I never really explored the TARDIS much beyond my own room."
"That's a shame," Rose piped as they began walking down one of the endless hallways. "There are so many amazing rooms to explore!" The two girls made their way from room to room, laughing and commenting on the ones they came across. "Let's try the trampoline room, that one was always my favourite."
"Trampoline room?" Martha seemed both excited and confused, "What's that?"
"Exactly what it sounds like," Rose grinned as they continued down the corridor, "It's a room full of trampolines. When they walked into the room, they barely refrained from breaking down laughing; they had found the Doctor alright, asleep on the springy material.