Remus was fourteen when he first met her. She was one.
She was adorable, of course. There was nothing wrong in his thinking that, however, as babies are adorable to almost anyone. She was also very funny. Her hair turned from pink to purple to blue to green and back to pink in a matter of moments. It was as though she couldn't decide what her true hair color was.
"Siri!" she cried with joy as she held her arms up to the only cousin she liked. Even at a young age she had learned that her family, aside from her parents and cousin Sirius, did not show affection, and rarely even acknowledged her existence.
Sirius laughed and picked her up. Somehow the prankster/daredevil/tough guy image he had didn't seem to work holding a baby.
Remus laughed. She was no more special to him than she was to James or Peter. He had no connection to the Animophmagus his best friend was holding.
"So, why are we spending the holidays at your Aunt Andromeda's house?" James asked.
Sirius shrugged. "Said she needed me here. Her and Ted have something to do. Apparently it's some big secret. They must have been pretty desperate if they were willing to let three teenage boys babysit. Four if Peter didn't have to go home for Christmas."
James and Remus laughed, digging into a plate of cauldron cakes that James' mother had insisted he bring to thank Andromeda for her hospitality.
Two weeks later, Remus was back at Hogwarts, Nymphadora Tonks just a vague memory amidst exams, pranks, and girls.