the_debt_of_time

She grinned, licking her lips as his fingers dipped back down to the apex of her
thighs, finding their way to her clit with such ease it felt like no time at all had passed
between 1979 and now.
"It'll be dramatic," she said on the end of a whimper. "I might have to make a
scene."
Sirius chuckled, a shiver of anticipation running through him. "When don't you?"
"Cast the Contraceptive Charm."
Sirius stopped his ministrations. "But I thought.. ."
"My mother taught me that charm for a reason. Despite the fact that I could
honestly care less what people think about me, Molly's scandalised tone of voice grates on
my nerves. I am not getting pregnant out of wedlock. So unless you plan on proposing
right now, cast the charm."
Sirius smirked, pressing his lips to her throat. "And if I was planning on proposing?"
"Then pull that ring off your chain and do it," she said, challenging him.
He froze and then jumped away from her as though he had been burnt. Staring into
her eyes, he felt the colour momentarily drain from his face. "What? How—?"
Mia scoffed, rolling her eyes. "How did I know that you've got a ring hanging off
the silver chain that I gave you? Disillusioned and charmed with a Notice-Me-Not? Sirius,
I taught you both of those spells. I may not be able to see it, but I can sense my own charms."
Sirius frowned, narrowing his eyes. "How long have you known?"
"Since you came home with the ring after Jamie and Lily's wedding."
His mouth fell open. "How come you didn't say anything?"
"It was your job to propose," she insisted, leaning forward to kiss at the corners of
his mouth that were currently turned down. "You were working yourself into a fit trying
to get the nerve to do it, and I didn't want to ruin it for you."
He huffed. "And now?"
"Well.. ." She sat back and smiled at him. "You've had nineteen years to think up
a pretty good proposal, and I'm sure you're over any cold feet by this point. Did you ask
Jamie's permission?"
"Does that piss you off?"
"A little, but I bet it made his day."