the_debt_of_time

"Need you," Sirius said on the end of an exhale before burying himself inside of her
in one long thrust, hissing at the feel of her tightness around him. She squeezed him as he
drove hard and deep, wanting to delve inside her and mould her body specifically
to his cock. He groaned loudly, pressing his face into the crevice of her neck as she dug her
fingernails into his shoulders.
Every stroke wound him tighter and tighter, a familiar building pressure that burned
hot and felt icy cold at the same time. With every movement of his hips, Sirius eased out
and left her wanting, then thrust in again to fill her until she cried out for him in bliss. He
kissed along her throat before lifting up and pressing against her forehead, letting her eyes
focus on his face. He rode a dangerous line between pain and pleasure, but he still held
back, not wanting to hurt her.
Somehow, Mia must have known, because she moaned, "Harder," and dug her heels
into his arse and tilted her hips upward, allowing him to bury deeper.
He growled at the change, fighting the thoughts inside of his head that told him she
was delicate, and he was not worthy.
She put her hands on either side of his face until he opened his eyes and looked
down at her. When she finally had his full attention, Mia demanded, "Fuck me harder!"
And Sirius lost every semblance of control.
Rough hands took firm hold of her hips, pulling on them hard as he slammed into
her. Mia watched with parted lips as drops of sweat fell down his chest. Her gaze raked
over his sculpted frame until her eyes focused on their connected bodies. Sirius, too,
brought his attention to the place where they joined, panting as he watched himself piston
in and out of her.
As the coil inside of him wound tighter and tighter, he could also feel something
pull at his chest. A piece of his magic tugged hard, almost violently until he was physically
pulled down. His eyes widened, and he stared into hers, realising by the way her back arched
at the same time that she must have felt it too. The thread of magic twisted tight, and if he
closed his eyes he could almost see it, feeling it twist into something stronger.
"Sirius.. ."
"Look at me," he pleaded with her. "I need to see you come. Please let me see you
come."
Her eyes widened at his words. She panted hard and let out a breathy cry.