A/N: My first crossover fic yay!!!!!! read the summary I'm not here to make your life easier!!!!!

The Doctor got out of the TARDIS followed closely by Donna, they were somewhere in the present, 'Quantico, Virgina' the Doctor said, 'Just outside FBI headquarters, and this, Donna, is where I dropped something off around 20 years ago, well, give or take a few years.' he looked around and spotted it, 'there see that?' Donna looked ahead, confused,

'No, what?' she asked, he looked at her like SHE was the spaceman!!!!

'There, look properly!' The doctor pointed at something in the distance, 'there it is, the thing I dropped off, look!' He was getting impatient.

'All I see are people getting off a plane! You dropped off a PLANE?!?!?!?' Donna swung round open mouthed to look at the Doctor.

'No, HER!!!!!' he pointed at the people coming out of the plane. 'Come on' he grabbed Donna's hand and the both of them ran towards the FBI building.

Once inside the Doctor flashed the guy at the desk the psychic paper and they passed through without any fuss, one on the level of the BAU, the Doctor looked around and his face split into a big grin when he saw what he was looking for, 'Donna, may I introduce my daughter, Lisa.'

Lisa looked up and saw her biological father for the first time, though she didn't know who he was, 'yes, can I help you?' she asked the strangers.

'Don't you know who he is?' Donna asked incredulesly.

'No, is he some kind of celebrity?' Lisa looked confused, her husband came and stood next to her, it'd been four years since the rape, and only a few months off four years since the kidnappings and Derek would be out of prison soon so she had more on her mind than a man diva of a celebrity.

'Donna, she's never met me before in her life, she won't know who I am,' he turned to Lisa, 'I'm your father, your biological father by the way, and I dropped you off here around 20 years ago when you were only 4 months old, cause my life got a little too dangerous for you.' he looked at Lisa solomnly who looked back with an arched eyebrow.

'Well thats damn near impossible seeing as how I'm TWENTY FOUR YEARS OLD!!!!!!' she crossed her arms and looked at the Doctor, Donna, however observed that it was the same look he gave villans just when he was about to kick some alien butt, they couldn't have looked more alike at that moment.

'Well,I may have been off a little, but FOUR YEARS?!?!?!? thats a new one.' the Doctor looked up and drew in a breath, 'Anyway, I've been watching you, Lisa, all your life, making sure you're alright, making sure I don't lose you.' he looked at Lisa, who had now unfolded her arms, but was still giving him that death stare.

'Oh yeah,' she challenged, 'prove it!' she sat back to watch him fail, both eyebrows raised in a mock interested look.

'Well, I know you were adopted at the age of one, to a lovely family, called the Millers, aged ten you,' he pointed at Rossi, 'came to her school to give a careers day talk on being a criminal profiler, and that inspired you to do this, age eighteen you graduated high school and joined the FBI, choose to undertake the special training required of a BAU agent, age twenty you became a fully fledged agent, and now have four years of service under your belt. Did I miss anything,oh yeah you got married and now have two beautiful kids.' it was the Doctor's turn the gloat as Lisa stared at him opened mouthed.

In the briefing room, Lisa sat and looked over at her father, for a long time she just stared at him, then she finally said her piece, 'How could you? How could you just LEAVE me here like this? Why didn't you take me with you?'

'Like I said my life got too dangerous to have a baby with me.' the Doctor looked sadly at his crying daughter, this is exactly why he didn't like to stick around for so long, he could feel both his hearts breaking as he spoke, 'I was getting into all sorts, you know how it is and I had a lot, that's a LOT of people after me, I am sorry, for all the hurt and pain I caused, but believe me I did it for the best.' He looked down at a spot on the table that suddenly became more interesting the longer he looked at it.

'Do you know how it was for me? I knew I was different and all my 'mom' and 'dad's other kids treated me that way, I could run and run and never get tired, why is that by the way?'

'Ah, That, two hearts, you have two hearts, its a sign of a Time Lord.' Lisa looked at him, then ran over and hit him on the arm, 'OW, WHAT WAS THAT FOR?' the Doctor, rubbed the spot Lisa hit and looked at her with a furrowed brow.

'HOW COULD YOU ABANDON ME LIKE THAT! IT'S NOT FAIR!!!!!!!!! I NEEDED YOU AND YOU WERN'T THERE!!!!!' Fresh tears began again and she fell into his open arms and there she cried, and cried until all her anger was spent, and then she looked at him with a sad look in her eyes, 'I was raped nearly 5 years ago did you know that?' she gave a nervous laugh, 'My first year as an agent, my first few months actually, and then I got raped in the elevator, I got pregnant, and he kidnapped them, he got caught but only has a few months to go on his sentence, the kids' 4th birthday is in a few wekks and I just know he'll send them cards form the prison, he always has, tell you the truth I could have used you around these past few years.' Lisa wanted to know more about him, and about her mother, but for now at least, she would be content with letting him get to know her kids.

A/N: I'm sorry I didn't make this chapter longer I'll try harder with the next chapter! Pwomise he he he xx.