For all the technical stuff see the prologue

Jack stood motionless before Dan trying to take this new information in, "All I wanted to do was meet you, I've done that now so you can go back to your perfect life and forget all about me." He said walking in the opposite direction to Jack.

Seeing that Dan was leaving Jack jogged over and grabbed his arm loosely, the boy turned round and glared. "It's not what you think, the baby isn't mine, him, his dad and his sister live with me. Jo is short for Jonas, his girlfriend died having Toby. I'm helping him raise them." Jack let his arm fall to his side and waited for the boy's next move, when he did nothing Jack continued. "It's not that I don't want to believe you, but how can you be so sure you're my son."

"This may take a while and I know how much you wanna get back to that party of yours." Dan said bitterly.

"That isn't as important as this, this is kind of a life changing thing."

"Fine let's sit down somewhere" they moved to a nearby bench whilst Pacey played with a ball. "My mom never really talked much about you so it's only the stuff I could piece together, basically my mom worked with you and she was with this guy called Andy but they had a fight so she came to you."

"Yer I remember..."

Flashback

Jack was on his roof lay on the deck looking at the stars. It was a clear night and he just felt like thinking. He heard steps on his ladder and raised his head. A blonde mop of hair was seen and soon followed by the head and body of Samantha Carter. She was wearing a very short skirt, and low cut top that made Jack realise just how much of a woman she really was and how much he loved her. He was about to say something when she placed a finger over his mouth, which was soon replaced with a kiss.
"Sam, what about Andy." He said pushing her away.
"Screw Andy, but I'd much rather you screwed me." She said capturing his lips again, he knew this was wrong but it felt so good. They later moved into Jack's house, when Jack awoke the next morning to an empty bed. Later at the SGC Jack found Sam working in her lab. He had decided to tell her how much she meant to him but she started speaking first.
"Sir, about last night, I was in a bad place and you helped me through it, but it was wrong, I'm with Andy and I don't want to compromise that so I'd like to forget it ever happened." Jack hoped his face wouldn't betray him as he felt his heart rip in two.
"That's exactly what I was thinking major, I'm glad we both feel the same way. Well I'll see you later." He said beating a hasty retreat. It was always uncomfortable when they were in the room from then on and a month later Sam requested a transfer to the pentagon he hadn't seen her since even though he'd tried on many occasions.

End Flashback

"Well soon after she left she found out she was pregnant but she wasn't sure whose baby it was as it could have been yours or his, so being the decent woman she is she told Andy what had happened. Anyway when I was born they did a DNA test and I wasn't his and seeing though she'd only been with two men when I was conceived I had to be yours."

"Why didn't she tell me?" Jack asked disbelieving.

"Honestly I have no idea, she never really talked about you, all I knew until recently was she was she was under you command and you had a wife. So I always figured you were having an affair with mom, she got pregnant and you just dropped her. Did you know that I used to hate you for choosing your wife and son over me."

"Dan, that's not how it happened, I loved your mom and it tore me apart when she left. I broke up with my ex-wife about a year before I met your mom and my son, well he died when he was 9, he was playing with my gun and it went off that's why me and my wife split and she didn't know about Callum, hell I didn't know about Callum till she'd left. I didn't know about you, your mom left, I tried to talk to her but she wouldn't let me, now I know why." He stared into his son's blue eyes and saw the same emotions running through them, denial that the person they loved could keep them apart, hurt, regret and even a bit of fear over what was about to happen.

"Dan, it's not that I don't believe you cus I think I already do, but we need to do a DNA test to be sure." He saw the boy nod. "So how is your mom?" "Good, she raised me basically on her own, when I was 3 she met this guy at work and that got pretty serious, they had a baby girl together and named her..."

"Abby" Jack interrupted

"How did you know?"

"Sam always wanted to call her baby girl Abby. I'm surprised she called you Daniel, he had a knack for getting on her nerves, he still annoys me." Grinned Jack

"I never knew why she called me Daniel, but my little sister lived for 4 hours, she had a heart defect. Her boyfriend left her, he couldn't cope. Then a couple of years ago I was skipping school," Jack gave an annoyed glance, "don't look at me like that, it was only science, when do you ever use physics." Jack grinned, as did Dan, "Well my teacher found out and called mom in. She was really annoyed but they got along great cus they had loads in common so I didn't really have to worry. They spent more time talking bout physics than bout me. Well they started going out and then two weeks ago they got married. Pete's ok but we don't really get along, he tolerates me and I do the same for moms' sake. They're on honeymoon for another 2 weeks so I'm staying with my uncle Mark, we're moving over here so my mom can be closer to the Air Force Academy she works at."

"So is that why you decided to see me?"

"Cus we moved?" Jack nodded, "Nah, I heard them talking mom wanted Pete to know about her past, or as much of it as she could tell, they thought I'd gone to bed but I was hungry so I came down and heard you weren't the jerk I thought you were. I mean you might be but I want to find out about my dad and the rest of my family, I wanna find out who I really am I suppose. But if you don't wanna know me, then that's cool too."

"I want to know you, if you're my son or not, I know a lot of people who would want to get to know you, first we need to do a paternity test, fortunately one of my friends is a doctor."

"Ok. So who's Callum? You and that guy who opened the door spoke of him."

"He's my son, one of my missions went wrong and I was stuck far away, I never thought I'd go home so I made a new life for myself with Callums mom but then your mom rescued me and I left. Then a few months after your mom left Callums elder brother came and saw me, his mom had died and she'd wanted me to raise Callum. He's 14 now."

Jack couldn't believe that Sam could have done this to him, had he really meant that little to her. And if that wasn't enough she'd made his own son hate him and then left him to find his dad on his own without knowing anything about him. Jack had never been this angry but couldn't let Dan see it as the boy was already scared enough he'd just have to shout at Daniel or Jonas about it later.

As they neared the door to Jacks' house he placed his hand on the boys shoulder gave it a squeeze and then let it drop. "Don't worry they're normal people, well most of the time." He gave Dan a reassuring smile and then opened the door. The guests had already left and everyone was now the clearing up. Lucy spotted Jack and ran over to him.

"Uncle Jack you missed cutting the cake and singing happy birthday." She whined obviously upset.

"I'm sorry Lucy but Pacey really had to go for a walk and then I met my friend Dan here and we started talking, I'll sing happy birthday later and we can have a special party ok?" The girl nodded, "now where's your mom?" Lucy pointed to the outside near the pool.

"Adam and Nick are refusing to get out, they're being their normal annoying selves. Oh and dad said it was you that told them to dive onto me and my friends..."

"Lucy I'm kinda busy but hold that thought and I'll get back to you." Jack said bidding a hasty retreat and dragging Dan with him. As they walked into the paved pool area they could hear an argument commencing between the two boys and Daniel.

"Boys get out now and we'll forget all about it...no... don't even think about splashing me, I just dried off after last time." Daniel then muttered to himself,

"Damn you Jack. Look boys I'm not joking, I don't know why you're laughing, this isn't funny."

"Dan can you wait a second I just have to do something." Jack said to Dan as he went up behind Daniel, the two boys in the pool started to laugh because they knew what was going to happen next.

"BOYS, THIS IS NOT-"Daniel shouted as he felt himself loosing his balance and went into the pool with a almighty splash, soaking his children, Jack just made it to a safe distance. He came up spluttering and very annoyed, he spun around and glared at Jack, "how did I guess you had something to do with this Jack. No wonder my kids are out of control, you're worse than they are. Now come here and help me out before they attack me."

Jack thought nothing of going to the side of the pool and extending his hand, Daniel reached up and grabbed Jacks hand and pulled him in too. When Jack surface Daniel was grinning triumphantly, "now we're even."

"Why thank you Daniel, now if you'll excuse me I have to find your wife, do you happen to know where she is?"

"She's on the deck with Cassandra and Jonas. Why?"

"I want some medical advice." Jack said pulling himself out of the pool, "Nick and Adam say hi to your cousin. Dan you've met Daniel already and I suppose you can see what I mean about being annoying. The little one with blonde hair's Adam and the bigger one with brown hair's Nick they're Danny's kids." Jack bid a hasty retreat leaving a perplexed looking Daniel to get mobbed by his kids.

"Sorry bout that, it was just too good an opportunity to turn down."

"Aren't you cold?" Dan asked worriedly. Jack grinned and remembered his time in Antarctica.

"Nah I've been colder and they'll dry." They reached Janet, Cassie and Jonas. Hazel was playing with a doll near by whilst Toby was playing peek-a-boo with Jonas. "Hey guys I'd like you to meet someone." They all looked up from what they were doing to stare at Jack and then the boy behind him.

"This is Dan, I think he's my son" Jack looked at Dan and then at his friends and back to Dan before they both burst out laughing. The others started to laugh too.

"Jack that was a very good joke I think you had us all fooled." Jonas laughed. Jack immediately stopped laughing and started frowning.

"I'm not joking we were laughing at your faces. Dan is my son, we just need a paternity test to prove it."

"What's your name again?" Cassie asked.

"Dan, Dan Carter." Dan said

"Carter? As in Maj. Carter US air force major, second in command of SG-1 under Col. O'Neill for 4 years?" Jonas stated.

"We'll go into the details later, right now I wanna get that test and talk to my son. So could you call someone from the base to come and do it please Janet. I'll be inside."

I figure that although Jack'll be really upset he'll want to put on a brave face for his son so that's why there was a lack of emotion (so far).
I think this chapter answers most of the questions posed in the reviews. The rest will come in later chapters.

Thanks for all the reviews they really helped so please keep them coming.