Grissom and his friends had all started at their universities and were loving every minute of it While they were all at Uni Sara spent her time working and taking care of Leo, Leo would stay with either her parents or Grissom's parents when she was working so the couple didn't have to spend money on a nanny or a babysitter. Today was Saturday the 27th of September and Sara's 18th birthday.

Grissom had spent the morning letting Sara sleep in and was busy making her breakfast and taking care of Leo. Once he finished making waffles with chocolate sauce he brought them to her in bed just as she had done for his birthday.

"Happy birthday babe!" Grissom said placing the waffles next to her on the bed.

Leo, who was now 4 months old let out a squeal and reached his arms out towards Sara. She smiled and cuddled Leo to her, kissing him softly.

"Thank you Griss" she said leaning over to kiss him.

"Want to help me eat these?" Sara said winking at him.

"Always"

They couple and Leo spent the rest of the morning in bed watching a movie and playing with peek-a-boo. Their laughs could be heard all through out the house.

There was a knock on their door.

"Come in!" Sara shouted.

"Are we going to get to see the birthday girl at all today?" Robert joked as he entered the room.

The couple laughed, Leo letting out a squeal.

"Yeah daddy, we'll be down in a minute"

"Okay, and happy birthday princess" Robert said as he left the room.

"Thanks daddy" she shouted back to him.

"Come on you two, lets get changed then go downstairs and see everyone" Grissom told his fiance and son.

"Shall we go see papa, nana and uncle Greggo Leo?" Sara asked her son.

Leo showed them his gummy smile at the mention of his papa, out of all their friends and family Sara's dad was definitely Leo's favourite to be around. The two parents laughed when their son started to squeal as they weren't moving from their bed.

"Okay, okay, we're getting up Mr" Grissom said picking his son up and lifting him above his head.

Leo reach for his dads face and shrieked happily. The two parents quickly got changed into some casual clothes, Grissom some black jeans and white Nike t-shirt. Sara dressed in some denim blue ripped jeans with an oversized white top that said 'Limited Edition' on it, she had it tied at the front so it wasn't as baggy. Grissom put Leo in a Nike baby blue top and black bottoms. The three then made their way downstairs to join the family. Sara had decided she wanted a night in for her birthday, just her close family and friends. Robert said he would do a BBQ for everyone, they had also rented a hot tub for the weekend as well as a huge bouncy castle and got the slip and slide out since they were things Sara loved as a child and even more so now.

When the three entered the living room their friends and family were already there, Sara received many gifts from them all but her very favourite was a scrap book from Grissom and of course Leo that was full of memories of her growing up.

"I love it Gil, it's the sweetest present ever"

"I'm glad you like it babe" he said kissing her cheek, this making her smile even bigger.

As they all looked through the album they began to see how alike Sara and Leo were at such a young age.

"You know Sweetie, you were always such an advanced little girl. I remember you were around 9 months when you started walking, your father was always in such a panic in case you hurt yourself. You were always on the move, unlike your brother who would sit and watch TV most of the day" Laura said causing everyone to laugh.

"OMG! Look, that's us all on our very first day of school" Catherine pointed out.

"Greg's hair's as bad there as it is now" Warrick joked making everyone laugh and Leo squeal.

"Oi! My hair is fine" Greg huffed.

"Of course it is darling" Laura told her son, bringing him into a hug while still laughing.

"Aw look how sweet Grissom and Sara look there" Annie pointed out.

It was a photo of the couple from when they were around 7 and 8, Grissom was giving Sara some flowers he picked out when they were at the park. The two youngsters were smiling at other.

"You always have been very sweet to Sara" Betty told her son, squeezing his should.

Grissom and Sara looked at each other blushing, Sara then turned the page.

"ITS ME!" Mia screamed.

"Yes it is sweetheart, you were just a couple months old" James told his little girl, hugging her to him.

It was a picture of all the kids sitting round Mia's baby seat on Gil's birthday.

On one of the last pages was the picture of Sara trying on her prom dress with Leo in her arms, the picture Catherine had taken. This one always made Sara smile no matter what mood she was in.

"That is the sweetest present ever Grissom. You're so lucky to have him Sar" Catherine told her friend.

"I know, now can we all get ready to go in the hot tub?" Sara told them.

Everyone agreed, the teens and Mia got changed into their swimwear. The boys quickly put on their swimming trunks, Grissom changing Leo into a baby swimsuit that had bugs on it. They waited for the girls outside, helping Robert and James start the BBQ and Betty and Laura take the drinks outside. The girls all came downstairs in their different swimsuits, Catherine in a pink two piece, Tina in a orange swimsuit, Annie in one similar but green and Morgan had on a two piece high waisted cheetah print bikini.

"Where's Sara?" Nick asked the girls.

"She's just helping Mia get into her swimsuit" Tina told them.

"Oh my, how cute does Leo look in his little swimsuit" Morgan said walking over to Greg who now had his nephew in his arms.

"Present from Uncle Greggo, wasn't it Little guy" Greg said proudly as Leo ate his fingers.

Mia then ran out the house in her pink swimsuit with a tutu on it.

"Gilly, look how pretty I look" she said to her brother.

"Very pretty Mia" Grissom said laughing as his sister twirled in her new swimsuit.

Just as he looked up from his sister he saw Sara come out in a dark red two piece bikini.

"WOW" he thought to himself.

Sara smiled at him when their eyes met and gave him a wink.

"You know Sara, you'd never know you had a baby 4 months ago" Nick told her.

"Yeah, you look amazing" Annie said.

"If I ever have kids I better get back into shape that quickly or I'll go mental" Catherine said causing the teens all to laugh.

Sara blushed at the comments "Thanks guys but how about yous all stop complimenting me and get in the hot tub"

"Good idea Sar" Warrick agreed.

The teens, plus Mia and Leo, all got into the hot tub. Sara held her son, who kept splashing around in the hot tub.

"Sara, can we go in the pool now? The hot tubs not that fun" Mia begged.

The teens all laughed, Sara told her that was a great idea and they all got out. Sara put Leo in a pool floater, who let out a squeal when she put him in the water.

"You like that baby boy, huh?" Sara said laughing as her son continued to make happy noises.

Grissom swam over to the pair, kissing Sara's cheek.

"What are you saying Mr, you want to come swim with daddy for a bit?"

Leo hit the water making a splash, "I'll take that as a yes" Grissom said.

Sara smiled as Grissom swam pushing Leo in his float, she then swam over to where the girls were sitting on the side of the pool.

"Enjoying your birthday then?" Annie asked.

"Yeah, it's the best"

"OMG, look a Mia with the boys" Catherine laughed.

Mia was on Greg'sshoulders with a water gun in her hand spraying the other guys.

"She has them wrapped around her little finger" Tina said laughing.

"Yeah, especially Greg" Morgan added, to which they all agreed.

"Okay guys, game time!" Catherine announced.

They all agreed to play one of Catherine's games, all the boys had their partners on their shoulders expect Greg who had Mia on his as Morgan was holding Leo while sitting on the side of the pool.

Grissom and Sara's parents watch the teens, Mia and Leo, laughing each time one of them fell into the water.

Annie and Jim were the first couple out, followed by Tina and Warrick.

"We going to win, cause Nicky's rubbish at this game" Mia said out loud to Greg.

"Oi! I heard that Mia" Nick said, while everyone else laughed.

Mia just smiled at Nick and started splashing him and Catherine. Eventually Greg and Mia, with the help of Sara and Grissom, they managed to knock Catherine off Nick's shoulders.

"Told you!" Mia shouted, causing the teens to laugh.

"Sibling war now" Greg said.

"It's on Greggo" Sara laughed.

"You're going down Gilly" Mia said making a face at her brother and Sara.

"You've been spending far too much time with Greg" Grissom said laughing.

"Okay you lot, enough battle talk. Fight!" Nick shouted.

The teens all cheered for who they wanted to win, Greg and Mia eventually lost making Sara and Grissom the champions.

"Sorry Mia" Greg told the little girl.

"It's okay Greggo, we just let them win cause it's Sara's birthday" Mia stated.

"Obviously"

Grissom and Sara screamed at their victory, Sara still on his shoulders.

"Hey Griss!" Warrick shouted.

"Yeah?"

"I have a dare for you"

"Okay, what is it?"

Grissom wasn't one to not go through with a dare.

"I dare you to chuck Sara off your shoulders" Warrick laughed.

Sara started screaming "Gilbert Grissom, don't you dare!"

This cause Grissom to laugh, the teens along with Mia all chanted at Grissom to do it.

"You know there's a forfeit if you don't do it" Greg said.

"Don't! Griss!" Sara screamed again, holding onto him tighter.

Grissom laughed "Sorry baby, but a dares a dare."

As he said this he chucked Sara off his shoulders in to the water making everyone laugh.

Sara came up from under the water, splashing her partner.

"That was mean!" Sara told him.

"I'm sorry" he said kissing her cheek. "Forgive me?"

Sara rolled her eyes "I suppose"

"Okay you lot, foods ready!" Robert shouted over to them.

"COMING!" they all shouted as they got out of the pool.

Sara got out first while Grissom passed her Leo. The teens all grabbed their towels, James grabbed Mia wrapping her in a towels before she could get her food.

"You go sit down with Leo, I'll get yours if you tell me what you want" Grissom said kissing Sara.

"Thanks baby, you know what I like, I trust you" she told him kissing him again.

Grissom smiled and went to get them some food while Sara took a seat on the ground on one of the blankets with Leo. Sara lay her son on the blanket and watched as he started 'talking' to her in his baby language.

"Aren't you very chatty today Mr Leo" she said to her son, tickling his belly.

He started to squeal and wriggle at her touch. Grissom smiled as he walked over to the pair with their food.

"You two sound like you're having fun" he laughed as he sat down next to them.

"We are, aren't we baby?" Sara said picking her son up to kiss him softly.

Grissom smiled, he then kissed them both softly on their foreheads. Sara and Grissom began eating as the other teens and Mia joined them on the ground, some bringing more blankets as well. Their parents sat on the chairs next to the table while they ate and talked. Once Sara had finished eating she fed Leo his bottle as he started to become crabby when being held by Tina.

"Here you go little man" Sara whispered to her son as she started feeding him.

Once all the teens were finished eating they decided to go on the slip and slide.

"I'll come over once Leo's finished eating" Sara told them.

"Sara, princess, give me my grandson and go have fun" her dad told her.

Sara smiled at her dad who took his grandson from her "Thanks daddy!"

The teens along with Mia went on the slip and slide, laughing as Greg tripped up over Buddy who was chasing him on it.

The rest of the day was spent on the bouncy castle, the pool and hot tub. As it got dark the teens all dried themselves and put on some cosier clothes, Morgan and Sara stealing their partners jumpers. They then all settled around the fire that James and Robert had set up.

Sara sat cuddled into Grissom with Leo in their arms.

"So sweetie, have you had a good day?" Laura asked her daughter.

"Yeah, one of the best. Thanks mumma"

"I'm glad princess" Robert said to his little girl.

"Hey, who would have thought that this time last year you would be turning 18 with a baby boy and a fiance and that your fiance would be Grissom!" Catherine said.

This made everyone laugh in agreement.

"Yeah, I know, but I wouldn't change any of it for anything" Sara told them.

"Me either baby" Grissom said kissing her.

The rest of the night was spent talking and laughing, Sara eventually fell asleep along with Leo in Grissom's arms with a smile on her face. She couldn't have dreamed how happy she would be a year after her and Grissom began dating. She was now engaged to her best friend and the love of her life and had a beautiful baby boy with him. She had the most loving and caring friends and family in the world. She was the happiest 18 year old in the world and she couldn't wait to spend the rest of her life with her friends and family, especially her little boy and Grissom.

(I have finished the story here but will make a sequel as I want to explore more of Sara and Grissom's life but maybe a few years in the future when Leo is a toddler. I was thinking of creating some drama as well, please let me know your opinions.

Hope everyone is safe and well during this tough time xx)