the_debt_of_time

"Tilly knows who Tilly belongs to." The elf looked over at Mia with a lovingly
devoted smile. "Mistress and.. ." She turned and glared at Sirius, pointing at him. "That
one."
"I'm 'that one'? Remember when she used to like me?" Sirius asked Remus.
"Tilly likes him again when he marries Mistress like a good boy," the elf promised,
releasing Harry's hand to walk over to Mia, taking her hand instead and admiring the opal
ring there. "Mistress Dorea insisted."
"My mother was... ?" Mia began to ask but stopped and rolled her eyes with a put-
upon sigh. "Of course, my mother had planned our wedding. Why wouldn't she?"
Tilly grinned and snapped her fingers. A large stack of rolled parchments appeared
on the table, all sealed with crimson wax and tied with a green ribbon. "Tilly kept all the
plans!"
A thought suddenly occurred to Mia. "Tilly, how old were we when Mum started
planning this?"
"Mistress went to Hogwarts for the fourth time."
"Fourth year?!"
Remus frowned, his mouth falling open. "You started dating me fourth year. That's
kind of insulting that your mother started planning your wedding to Sirius while you were
dating me."
"Mistress Dorea knew many things," Tilly said. "Knew Master Remus would find
his true mate. Tilly sees the bond. Tilly wants to see the baby."
Remus laughed at that and reached for his pocket where he kept a small photograph
of Teddy.
"Mum knew about me being from the future," Mia explained to Harry. "She knew
who you were, who Remus was, and what Sirius was to me, even back then."
"So let me get this straight.. ." Sirius looked down at the elf. "I'll be your Master
when I marry Mia?"
Tilly nodded. "Like Mistress Lily."
"What about Harry?"
She rolled her eyes dramatically. "Tilly is a Black elf. She passes from Mistress to
Mistress. Tilly served Mistress Lily because Mistress Mia says so. Young Master Harry not
need Tilly. Has his own elf."