Pagan and Sheldon returned home, thy had been discussing whether or not to tell Leonard when they were in the car, they agreed it was the right decision, there would have to be a DNA test but they could do that in minutes at CALtech if Leonard agreed to it.
Pagan was mulling over the idea of having an older brother, it would also mean he was her future childrens and Isaacs uncle, it would also make him Sheldons brother in law if they ever got married.
They went into the living room, it was only eight so the game was still in swing, only it had gone from Super Mario on the Wii to The Simpsons road rage on the Playstation 2.
"Hi Guys" Pagan said, it's response was a groan of acknowledgement.
"Leonard can Pagan and I see you in the kitchen for a moment?" asked Sheldon, causing Leonard to look up, they didn't look very pleased and so he followed them through, Pagan got out plates and started to microwave some Chinese food.
She turned to Leonard as Sheldon left the room with his plate, he closed the door after him.
"At dinner Sheldon mentioned to my dad that your mum works in Psychology, it turns out they worked together before you were born and they had an affair, there is a slight chance you and I are Siblings honey"
Leonard was trying to take this in, he and his father had never looked alike, he had always been the black sheep of his family, it would make sense for him to have different DNA.
"Ok, so what do we do?" he asked.
"I can drive us to the lab and we can check, it would make you my older brother and Isaacs uncle, theirs too" she replied, holding her abdomen.
"Alright, lets go" he said, opening the kitchen door,
"Actually, can you drive? I'll eat this in the car" she remarked, taking her dinner out of the microwave.
When they were waiting for the results they were discussing what characteristics they had in common, the same hair color, their love of science and they didn't know how but they even threw in that they can both cope with Sheldon when he was at his worst, although they didn't think their genes could anticipate that.
The results were being printed, there was a 25% match, considering they had different mothers this was understandable. They were siblings.
Leonard felt relieved, he now understood why he was so different to everyone else in the family. He got out his cell and punched in a number.
"Hello Mother, it's Leonard"
"Oh, Hello Leonard, what is you're Pretext for the phone call?" she asked in her usual monotone way.
"I want to know why you never told me my dad is really Mr Nowton?" he asked aggressively.
"It's not, it is actually Dr Nowton, why do you ask?" she replied
"How could you not tell me that?" he said, more angry than before.
"If my husband were to find out that I had had an affair then it would have finished our marriage, instead he had an affair and I left him, it's a matter of principle."
"Don't ever speak to me again mother" he said, cutting the phone off.
They arrived back at the house around an hour later, Sheldon had put Isaac to bed and told Howard and Raj the situation, they were chatting in the lounge when Pagan and Leonard walked in.
"I have a Sister!" Leonard shouted.
Howard and Raj stood up form the couch and shook his hands, Leonard grabbed Pagan and gave her a crushing embrace, he was so happy, Pagan was delighted at the news also.
Sheldon stood, he walked over to Leonard and held his hand out, Leonard took it and pulled Sheldon into a hug, making Sheldon more uncomfortable than he was at dinner.
"You better take care of my sister, as her brother it's now my duty to kick your ass if you don't" he said into Sheldons ear.
"Duly noted, can you let go of me now?" he asked.
Leonard released him from the hug, allowing him to take in air.
Isaac was watching the scene unfold before him from the lounge doorway, he didn't understand, he was playing video games with Leonard not long ago, he was trying to figure out what had changed when Pagan noticed him.
"We have great news little man, it turns out that Leonards your uncle, we just found out." she said as she picked him up,
"How do you just find out something like that?" Isaac asked.
Leonard took his nephew from his sister and told him all about DNA testing, the guys got pieces of paper and started drawing diagrams of DNA and how genes interlink.
Isaac made an excuse about being tired so he could go to bed, the guys didn't even notice, they were too busy crossing out each others work and replacing it with their own, Sheldon got Isaacs crayons out and started mapping out a DNA structure on a piece of A4.
Pagan was too tired for all of the squabbling and went to tuck Isaac in for the night, she ended up telling him that Jerry springer had phoned and told them, he understood this and fell asleep soon after.
The guys went home at midnight, Leonard wanted to tell Penny the news that night so he was in a hurry.
Pagan was clearing up the lounge whilst Sheldon tackled the kitchen.
"So what do you think, shall we have them babysit again?" Pagan shouted through so Sheldon could hear her.
"Isaacs still alive and doesn't seem to have been placed in mortal danger, however I don't want them teaching the boy science, he will end up as an umpa loompa in the mechanics workshop with Howard." He replied.