Being a witch was easy.

Being an omega was less so but at least manageable, what with an alpha best mate (who thankfully wasn't her alpha and another who was a beta) to fend off lecherous alpha's like McLaggen and Nott and Smith, who had a reputation for taking what they saw was theirs, even if it wasn't.

Anyway it was fine, none of them were hers , and at sixteen, fresh into sixth year she had yet to meet him.

Until she wandered into the great hall on the first day back at school after christmas of sixth year and almost fell to the floor at the smell that greeted her. She hadn't even seen him , but she knew, with every fiber of her being that he was there, that he was hers and she was his.

Him being her alpha was great.

She could stop worrying about it, stop panicking about never finding him, about being without her soulmate for the rest of her life.

Finding out he was a Slytherin though - irksome, and not because of house prejudices but because it would be infinitely harder to spend every night wrapped up in his arms with him in the dungeons and her on the seventh floor.

Discovering that he had been attacked by a vampire and turned and immortalised before she'd even had a chance to meet him - upsetting.

Realising that he'd never ever be able to come inside her without permission though, never be able to fuck her into submission and fill her with his knot and co - delightful .

"We're in the library" Hermione murmured breathlessly, tilting her head so Tom could continue to mark her neck with open mouthed kisses.

"I know" he replied quietly, nipping the mark that bonded them with his teeth and eliciting a whiny moan from his girlfriend, "but someone had the dirtiest dream last night about being bent over in the restricted section and-"

"You know about that?"

Tom hummed against her neck and Hermione could feel him smirking against her flushed skin, "I know everything about you sweetheart" he whispered in her ear, dragging her earlobe between his teeth and biting it.

Hermione moaned, and in a move so quick Tom was left wondering which of them was the vampire in their relationship, climbed onto his lap and straddled him. His hands automatically found themselves under her skirt and gripped her bare arse as he grinded his clothed erection against her cunt.

"You're such a fucking tease" he grumbled into her shoulder, "have you been wandering around school like this all day?"

"Maybe" Hermione laughed, moving her hands between them to undo the top button and zip of his trousers and pulling his cock out so that it rested against her bare lips,her slick covering him and her skirt hiding their behaviour, "are you complaining?"

"I will be if I have to listen to bloody Nott tell me how my omega inadvertently flashed him later on" he moaned as Hermione shifted in his lap and eased his prick into her twat, "fuck love, you're so wet" he moaned quietly and Hermione had to kiss him to shut him up less Madam Pince round the corner and discover them.

"Ok?" she asked quietly, looking right at him.

"I love you" Tom replied, gripping her hips and helping her move on his cock.

Hermione snorted, "you're so sappy alpha. "

She whined though when Tom growled and thrust up into her harder, his chair scooting back a few inches from the pace he was setting.

"Give it to me, Hermione, give it to me and i'll take you into the restricted section and make you beg me to fill you with my knot and my co-"

She convulsed in his arms, her cunt gripping his dick, her slick pooling in his lap as she came. Tom held her close and stroked her back gently, calming her down enough to move, his prick still encased in her twat, throbbing.

She lifted her head and met his lips with her own as he reached for his wand and cast a disillusionment charm on both of them. He walked them, Hermione still wrapped around him, bouncing gently on his cock as he did, to the restricted section and threw up a notice-me-not and a muffliato before he ended the dissolution and slammed her up against the bookshelves.

He fucked her hard, through three more orgasms, each time begging her to let him come, to let him fill her up with his knot and -

She enjoyed teasing him like this, he knew this. Most days she automatically gave him permission, unable to help herself from how good he felt, they felt, but today she was feeling brave, testing his limits.

It was days like today, when every time he'd felt Hermione clench around him and the ripples of her own orgasm brought him to the edge of his and he begged her to let him come, knot her, fill her and she said no, that Tom hated Gellert Grindelwald for turning him - for making him a submissive alpha with his own mate.

Tom moved pulled out of Hermione and had her bent over a table in seconds. He spread her legs and her ass with his hands and shuddered when he saw her own come dripping from her twat. Between her thighs was covered and he couldn't stop himself from leaning forward and licking the full length of her slit with his tongue.

"Oh God's please Tom" she moaned, her back arching as she drove her nails into the wood of the table she found herself spread over.

Tom wasted no time in complying, "You are so fucking tight sweetheart" he hissed, even as his hips snapped against her ass. He leaned forward, wrapped one hand around her throat and pulled her back so that they were flush against one another.

Hermione felt her orgasm suddenly crash through her when he trailed his fangs over her neck and his hand gripped a little tighter around her throat.

"Hermione" he rasped and she nodded fervently.

"Yes, yes, oh please yes Tom" she gasped even as she felt him push his swelling knot into her as he came.

"Mine, mine, mine" Tom murmured, moving his hand from her throat to wrap around her waist as he collapsed into a chair behind him, pulling her with him,

Hermione dropped her head back against his shoulder and sighed, content.

"I feel so full" she groaned, shifting slightly and relishing in how good her alpha felt.

Tom chuckled and placed gentle kisses along her jaw as his knot pulsed inside his mate, his omega, "I can't wait to drain you love" he murmured against her pulse point, "turn you, live forever with you."

Hermione shivered.