A/N: Hello, It's been a while since I updated, but here it is.
Disclaimer: J.K. Rowling is the author, not me...duh.
There are all sorts of shock. There is the kind of shock when you confess to your true love, and they just leave it hanging in the air, so there you are thinking 'I can't believe I just said that, and how dare they not respond.' Then, there's the kind of shock where the doctor announces, "You've been pregnant for the last nine months and you're ready to give birth. Now," so, of course, you sit there for a moment in utter disbelief, but then you freak out which is the understatement of the year of what is really going on in your head. Then there is the nice kind of shock where your friends throw you a surprise party two months after you birthday. Then there's the kind of shock you get when you figure out that your Defense Against the Dark Arts teacher has been in a magical disguise for the entire time you've known him and not only that but he is your future son. Needless to say, James' brain ceased to function at all, for any reason. The world could have ended, or Lily Evans could have kissed him full on the mouth, and he wouldn't have had a clue what had transpired.
On the other hand, Sirius took it for an elaborate practical joke of some kind and believed the Harry he had originally seen was the true Harry and the black haired Harry in front of him was the blond Harry in disguise. As for the future son thing, not a chance.
"You know," remarked Harry after a little while of Sirius rolling on the floor in laughter, "I'm not kidding. Look, James...err...Dad believes me."
Sirius did indeed look at James, who still stood in awe. In normal circumstances, he would have been rolling on the floor with Sirius, but somewhere in the back of his befuddled brain this seemed to be the truth. Harry had Lily's laugh, and Lily's eyes, not to mention it would explain why no one knew anything about him...at all. There was also the issue that he seemed to have that all knowing grin. That suddenly made a lot of sense. Harry did know what they were going to do and what they had done. Maybe Dumbledore was from the future too. That would explain a lot.
" H-How?" That was all James' brain could manage at this point. After all it is a common symptom that humans undergo any amount of stress grammar and proper English go right out the window. Darn it all, James' was stuttering again. Harry had a way of doing that to him, as if James was a small boy being scolded for accidentally changing the cat from a dapper grey to neon green, again. (The first time was an accident, the second and twelth times, and all the times inbetween had been for fun.)
"Well, it's something of a story," said Harry, and so for what seemed like a very short time, but in reality was something like two hours, Harry proceeded to tell them all the story of his interview. The questions had been asked about how his cloak had caught the side of that stupid jar, and how McGongall was going to be the next Headmistress. Remus and James nodded furiously through it, while Sirius grinned stupidly. Surely somewhere in the back of his brain this somehow all made sense, but for the most part he refused to believe it.
"So," Sirius snorted after a few moments of silence after Harry had finished his narrative, "Who's going to be the biggest prank store distributer in the future?"
"Actually," Harry responded, "it's going to be a pair of Weasley twins. They run Zonko's into the ground."
"Right." Sirius made a sound somewhere between a chuckle and a snort.
Harry beckoned Sirius over with a twitch of one of his long fingers. Sirius came over and bent down so Harry could whisper to him. After almost a minute of Harry whispering to Sirius, in that time Sirius had turned so pale that he was now the color of frozen milk, Sirius slowly backed away from him.
"How did you know that?" he demanded, "I never told a soul, not even James."
"You are more forthcoming with your godson." Harry grinned back, for he knew Sirius believed him now. Who couldn't after hearing something like that? After all, it was one of Sirius' best kept secret, which only he and Harry knew.
"Who is my godson, anyway?" Sirius inquired in a daze.
"You are as thick now as you are in the future, Padfoot," Harry sighed. "I should think it was obvious."
"Oh," James said. It was a little obvious. Harry was going to be James' son and Sirius was James' best mate. It was like adding two plus two, but with Sirius two plus two sometimes equaled fish. Sometimes, he was that thick.
"So what happens in the future, anyway?" Remus pressed after a long pause. Breakfast had been getting cold, and Harry insisted they eat it before it got to glacial temperatures.
"I can't tell you," Harry said through a mouth of eggs and tomato. "It could mess with the delicate balance of time."
"But you told me I have a son and you're the godfather, and that I'm your future DADA teacher. Why not anything else?" Remus argued.
"I tell you small things that won't have any great impact on the future. You having a son or being a teacher isn't going to drive you insane, unlike telling every detail or mistake in your life, which would cause you to try and change it and have huge repercussions that no one can foresee."
"That makes sense," Sirus had come out of his stupor and was shoveling sausages into his mouth at an extraordinary rate, but still managed this small sentence.
"It does, doesn't it?" James seconded.
"What can you tell us?" Remus asked after a moment. Harry considered this, but in the middle of what were clearly deep thoughts, the door burst open.
"Professor," a bright and cheery voice rang out. "I need your help, oh."
It was Lily Evans come for their every-other-week talk and study session.