the_debt_of_time

Their monthly animalistic game of dominance was an amusing way to pass the time,
but they were not a fox and dog right now. They were a witch and a wizard, and the wizard
was asserting his dominance over the witch writhing beneath him. As though he had not
the ability to control anything else in his life, he would control this moment.
When Sirius finally broke their kiss, Mia gasped loudly, but he did not pay attention
as he moved his mouth elsewhere, latching his lips and teeth to the side of her neck where
he bit down hard, causing her to whimper in both pain and pleasure, finding bliss in the
razor sharp line between the two. Though she rarely thought about one when she was with
the other—in any sense—Mia wondered if adjusting to Remus's sexual aggression had not
prepared her in some way to deal with Sirius's.
He sucked hard on the skin of her neck, likely marking her. When his rough
hands—callused from years of playing Quidditch—reached for her thighs, she moaned at
his touch and adjusted her body so she could reach for her wand that she had dropped on
the bedspread a foot away. Waving the vinewood at the door, she reinforced her Silencing
Spell and added an incredibly strong Locking Charm—just in time, as Sirius's hand slipped
between her legs, and she let out a loud cry of shock at the way he was taking command in
the moment.
His hair hung like a beautiful curtain in front of his eyes. He refused to look at her
as he dipped his fingers beneath the band of her knickers, slipping two inside of her wet
heat, and groaning at the feel.
The noise made her shiver, and she bucked her hips against his hand; the desperate
need for friction was stronger than her need to breathe.
Instead of touching her like he had done in the hallway of Hogwarts, Sirius removed
his hand and put it on her hip, pulling her down the length of the mattress until he was
kneeling between her thighs, pressing his hardness against her; nothing separated them but
a few layers of fabric.
She trembled with pleasure as he rutted himself against her, bucking hard and
panting, showing her what he could do to her without the boundaries of clothing. His
fingers dug into the skin of her hips and thighs as he moved above her, grinding their
bodies together, and growling low and deep.
Something inside of her coiled tightly, building a familiar pressure. She reached up,
running her fingers along his scalp and threading them through the black silk of his hair.