Time skip!
Harry stood with his brother as he took Lily Evans's hand in marriage. Severus stood opposite Harry as he had given Lily away as her father had died when she was sixteen. Harry and Severus had been dating for two months and Harry still smiled when he looked at his lover. Harry was fourteen and Severus was eighteen but no one in the wizarding world cared. After all Harry knew Severus as a thirty year old man in his real life.
". . . you may kiss your bride," Harry snapped back into reality as he saw his father/brother kissed his mother/sister-in-law. Everyone cheered as the two kissed deeply and smiled at each other.
Harry and Severus danced together when the reception started and both watched their friends and family having a good time. Harry knew that soon he was going to have to make a decision about how he and Teddy were going to change the future. But for now and for another three years they weren't going to think about it.
"PUSH LILY COME ON!" Harry heard his brother yell.
"DON'T TELL ME TO PUSH JAMES POTTER!" Lily yelled causing everybody to wince. Harry was sixteen now and he was now being born. If that makes any sense.
"Well this is a lovely birthday for you aye Harry," Sirius commented.
"Yeah my nephew is being born on my birthday. What's not to love?" Harry asked smirking.
"God your ego is getting as big as your brothers," Remus muttered.
"Shove off Remus!" Harry giggled as a cry was heard from the hospital room. Severus looked at his watch.
"Hay he was even born at the same time," he commented.
"How weird," Sirius said absent-mindedly.
"Yeah weird," Harry and Teddy mumbled.