the_debt_of_time

He released her from his teeth and pulled slightly away. "I was better for you when
I was innocent and young."
"You don't know what's better for me, Sirius. And it doesn't matter because I
loved you first. I loved you, wanted you—wanted the man, Sirius Black, long before I ever
stared into the eyes of an eleven-year-old boy in Diagon Alley. I craved you at this age for
years while I waited for your younger self to grow up. While falling in love with you back
then, I dreamt of you as you are now.
"Don't hold back with me." She thrust herself down upon him again, eliciting a
dangerous groan. "I love all of you, I want all of you. I can take all of you," she whispered,
her lips hovering over his as they shared one last breath before he crushed his mouth
against hers and gripped her against him, hard and rough.
No longer shaking, Sirius wrapped an arm around her waist and flipped them both
until she was pressed into the mattress beneath him, fisting the sheets, their positions
completely reversed from minutes earlier.
In one fluid movement, he withdrew and then thrust back into her, deep and hard,
pulling a sharp, pleasurable cry from her that split the air, likely feeding both his cock and
his ego. Rocking in and out of her body, she bit her lower lip thinking that he had never
been so rough with her before, and Merlin, was he setting the bar high now.
She raked her nails down his chest and, he pushed forward again, growling against
her skin as he fucked her, slamming into her body with inhuman strength and desire.
Loving would be reserved for later when they would tenderly rub sore muscles, lick scrapes
and scratches, and kiss bruises, but nineteen years had clearly been too long.
He was too far gone to be entirely human, and, by the slight tinge of blood that her
scratches were bringing to the surface, so was she.
When Sirius adjusted his angle to hit a particularly sweet spot, Mia cried out loudly
and arched her back, reaching out for purchase on his shoulders where she dug her nails
in deep.
"Ow." Sirius winced but kept thrusting. When he was unable to shake her grip, he
leant down and bit the skin between her jaw and ear until she released him. When her
hands let go, he caught her wrists and pinned them above her head, holding her there
tightly with one hand, slapping his other against her thigh which he hiked over his hip.