The first time she was given proof (resolute, undeniable) of his curse, his agony, she was taken aback, rid of her speech and unusually quiet for the young woman who was Tonks.
A wolf (sleek, grey, silent, with the same gentle eyes as the man she had just met, the man who might have been an uncle ignored at parties, the one overlooked) curled on the floor in Lupin's room, long furry tail curled in a quiet swish-swish pattern over the floor as he lay dozing, dreaming. His eyes opened (slowly, so beautiful, gentle, but violent in the back, where the wolf paced and desperately lusted for freedom) and his ears cocked, watching her, hearing her, knowing Tonks in the doorway, with her eyes wide and her mouth half-open.
And she thought him to be more. Something not able to put into words, ethereal and gilt with silver evanescence, and she surprised herself by grinning at him.
"Corkin' moon out tonight," she said.
That was the start of newly unearthed affection (for her, for the woman girl who was loud and rat-a-tat-tat cheerful, bouncing, exuberant), and that was the end of the last emptiness (for him, for the werewolf wizard who was lonely and could see the maturity she had, quiet, watching).
Notes: I'm working on a fun, delicious Tonks/Lupin multiparter following OotP (having finished the book in a matter of two hours, and begun the first draft of my NT/RL fic Endless Flight soon thereafter); unfortunately, I'll be away from the Internet for the next sixty hours, first in a Cairo hotel, then on planes. :] So, this is to satisfy my urge to put a Tonks/Lupin fic up.