He knew, from the moment she became Mrs. Potter, that he would fuck her. How could he resist?

They had no doubt sent the invitation as a gesture. No one would have expected him to show up. Yet there he sat. He wanted…he needed…to see her like this. That red mane of hair he had fantasized about so often seemed to glow even brighter than usual. She stood at the altar in her perfect white dress, the very image of virtue.

He grew hard at the thought of spoiling her, of taking what wasn't his, of taking what belonged to another man…to that man.

Potter's hand closed around hers as he slipped the ring on her finger. Severus watched from the back row, holding the image in his mind, storing it for later.

--

She wasn't easy to seduce. Her devotion to her husband bordered on obsessive. But then, that was part of the challenge. The redhead had a wild streak that Potter had never quite seen, an attraction to the dark that her husband had always tried to ignore. Severus exploited it.

They floated around the same social circles so frequently that it was easy to steal moments alone with her. A casual touch at a dinner, a chance passing in the corridor during a ball. He slipped in subtle innuendo, discrete enough at first that she would convince herself that he couldn't possibly have meant what she thought he meant. And then more daring, more direct. An offer that she couldn't pretend not to understand.

He offered her a dangerous edge to her happy domesticity, one that she wouldn't refuse.

--

He took her hard and rough, showing none of the love that her husband would have. His hand fisted in her silky red hair as he thrust.

"Mrs. Potter," he groaned as he emptied himself into her.

Her offended glare let him know that she had understood perhaps more than he had anticipated.

She gathered her shirt and pulled it back over her head in a huff.

"You could at least grant me the courtesy of not calling me by another woman's name."

He leaned back against the headboard, enjoying the aftermath of his perfect orgasm.

"It's your name too," he smirked lazily.

"We both know which one you meant."

She slammed the door behind her.