Hey! This is my first Friends FanFic, I hope you enjoy it. Of course you all know that these characters aren't mine... if only!

Chapter One – Upside Down

"Dad, come and play Frisbee with me and Emma"

"Ok Ben". Ross rolled his eyes at Rachel and kissed her on the cheek before jogging over to play with his 12 year old son and 4 year old daughter.

At that moment, Ross Geller couldn't have been happier. It was his first wedding anniversary with the woman of his dreams, Rachel Green. They had a lovely stable life with their beautiful 4 year old daughter Emma and today was the celebration of that life. Ross and Rachel's closest friends had come together for a picnic in the park, to join them in their celebration. Despite not living so close anymore, at least five of the six friends still saw each other almost every day, but today was different because Joey Tribbiani had flown up from Los Angeles to be with them. Since Joey had become a bit of celebrity, he couldn't visit as much as he'd wanted to, but he wouldn't have missed today for the world.

"Oh, it's so good to be out here in the open" gushed Phoebe as she fed a bottle to her 6 month old daughter Charley "Feels like I've been locked indoors for six months"

Joey sat grinning from ear to ear as he watched Phoebe and her husband Mike feed their daughters.

"Here Joe" said Mike passing baby Cleo to him "It's time the twins met their uncle Joey"

He took her gently and grinned even more has he looked at the tiny version of Phoebe.

Rachel and Monica sat watching Joey. "Awww" they both cooed at the same time.

"Can you remember when our twins were that tiny?" asked Monica

"Yeah" Rachel agreed "And Emma"

"Awww" they cooed again, with Phoebe joining in

Mike looked to Chandler and shook his head. The guys smiled in joint amusement at the women. He was holding on to two year old Jack's hands as he helped him toddle round in little circles. His sister Erica slept in the twin stroller. It was the first quiet moment Monica and Chandler had had since the twins hit the terrible twos.

Ross watched his friends for a moment with a smile on his face, he was a lucky, lucky guy.

"DAD!" yelled Ben

Ross spun round to see his son glaring at him. "Ok ok" Ross chuckled "I'm coming" Ben would turn 13 in a few months, and Ross could tell he was going to be very much the typical teenager.

"Hurry up, daddy" shouted Emma, who was now bouncing up and down "hurry up!"

Ross ran over and joined in the Frisbee game with his children. He was so happy that Ben and his stepsister, Emma, got on so well.

When it came to Ross's throw it appeared that he got even more carried away than the kids! He threw the Frisbee high over Ben's head and heard a high pitched "OUCH!"

Ben and Emma began to laugh furiously, as their dad blushed furiously. "Oops" he said quietly and smiled goofily "I'll go get that"

He walked past his amused children over to where a woman sat picnicking with a little girl and two dogs. He patted the woman, who was still rubbing her head on the shoulder timidly.

"God, I'm really sorry" Ross started

The woman turned round, not looking up "Oh, its ok, accidents hap…." She stopped suddenly "Ross!"

Ross recognised her as soon as she looked up. The woman who he had made the mistake of having a one night stand with 10 years ago, when he was first dating Rachel.

"My God… Chloe"

"How are you Ross, it's been forever" she said, a little nervously

"I'm great" Ross began.

He stopped and looked at the little girl with Chloe. It was like he was looking into his own eyes and she had the same nose as Ben. Ross's expression suddenly turned to one of confusing horror. Seeing Ross's expression, Chloe arose "this is… my.. daughter Aimee."

Aimee got up too and held out her hand to Ross "Hi" she said brightly as she shook his hand before turning to run around and playing with the dogs.

There was an awkward silence between Ross and Chloe.

"I'm sorry Ross, I…"

"Is she…" stuttered Ross

Chloe nodded

"So I'm her…"

She nodded again.

Ross stood in shock as his eyes went from Chloe's apologetic expression, to Aimee running around happily.

"Hey Ross!"

Chandler's voice cut through Ross's thoughts and he spun round to see his friends looking in his direction.

"Womanising on your anniversary?" joked Chandler "Come on it's time for the toast!"

Ross turned to look back at Chloe who was gathering her bags up.

"I'm gonna, erm, need to talk to you. Soon." said Ross forcing the words from his mouth

Chloe nodded sheepishly. "I'm in the book. Same name and address" She walked away and rejoined her daughter

Ross nodded to himself, tried his best to shake the shocked expression from his face and returned to his friends.

"Sorry guys" Ross began as calmly as he could "It was an old student of mine"

Rachel touched Ross's cheek "You ok honey?"

Ross closed his eyes at his wife's touch, took her hand and kissed it. "I'm ok" Ross lied convincingly "just feeling a bit headachey"

"OK" interrupted Monica "You better go easy on this then" she finished pulling a bottle of champagne from the picnic basket

The group laughed and grinned in delight as Monica began to pour out seven plastic beakers of champagne.

"Wait a second Mon" said Rachel "I have something to tell you all first."

Monica stopped and turned her attention to Rachel, as did the others. Ross looked surprised at his wife. He didn't know what it was she was going to say

"What is it honey" enquired Ross

Rachel cleared her throat "Well…" she stopped as a smile spread across her face

"What is it!" asked Phoebe impatiently.

Rachel gripped Ross's hand "I'm pregnant!"

The group exploded with yells of congratulations and hugs, but Ross sat back in shock. He didn't know if he could take all these surprises in one day.

Rachel looked at him concerned "Are you ok sweetie?"

Ross looked at Rachel. He felt like he was going to cry, everyone was looking at him expectedly.

Ross forced himself into a smile "Yes I'm ok" he took her hand again "I'm better than ok. We're having a baby"

Rachel, Emma, Ben and his friends hugged Ross tight, and he smiled and tried to look as happy as he could. But all the time his brain was going through emotional turmoil. In the space of ten minutes, his happy, stable life had been turned upside down.