Alpha & omega AU. (NSFW.)

Based on THIS art (still in progress.)

Eren is completely smitten with the gorgeous, mysterious and aloof omega, Annie. She smells so good and everyone knows it. An absolute tease, because no matter how many times she wiggled her hips, rolled over onto her back or showed the slightest sign of submission, she'd revert back to being cold.

Eren always fell for it.

Ass up, palms to floor. The tilt of a lazy smile and an inviting wiggle of the hips. That's all the invitation Eren ever needed. It never took much effort to get the alpha worked up, to make him sweat. Annie knew it and she enjoyed it. Those mundane eyes would spark with devious and playful intent, but Eren let logic slip, especially when those thighs looked so plump and delicious. He'd give up a whole week of puppy treats to mount her, finally fill her up and- fuck. Literally.

He wanted her so bad.

"Come and get it, puppy." Of course, he'd fall for it. Every time. The haze of lust would always lead him to believe that maybe this time, she'll allow him to breathe her in. Just a little taste. Eat her up. So close.

"Annie..." He starts at her bare thighs, mouthing his moistened lips across her pale skin. Using his hands was a gamble, but oh so tempting.

From the moment he met her, he indulged himself in fantasies of what he'd do to her if given the chance to become her partner. It was easy to imagine it, but not so easy to put it into practice. In reality, he had to be slow and cautious, kissing gently and going upwards towards the swell of Annie's hip. Eren had calculated and planned his movements over the months. Learnt her likes and dislikes. Her voice and body being confirmation of pleasurable and undesirable foreplay.

Her breathy sighs gave him hope, made him ache and groan. Annie's pleasure was Eren's pleasure, simple. To mate with her was all he wanted, and he'd play the long game to get it.

"Kitten wants to play with me today?" Snap.

He didn't get further than grazing his teeth along her hip, that pesky fang catching and pulling on the thin fabric of her underwear. There was always something to trigger her patience, and it was always something small.

"Off." Voice flat and firm. Maybe he'd take his chances, nip at her ass or chew through her underwear- again. Once, because of his reluctance to move from the heat of her skin, Annie scratched deep enough to scar Eren's left eye. Worth it.

With great effort, he moved away. Alone, he could growl and chew at his bed. Bite and rip into anything that could help let out the pent up frustration.

Annie's hold over him was incredible, something she wouldn't give up for the world. The swish in her tail and the mirth in her eyes told him so. In a way, he enjoyed being the center of her attention. Even if he was her plaything, he welcomed it for the chance to be close to her. Annie's scent, golden hair, precise and elegant movements- everything about her was intoxicating.

"Kitten," He breathed, shuffling forward and letting his tail sweep softly across the floorboards. Earnest and honest. "I want you so bad..."

She rolled over, laid back and listened, humoring Eren. It was almost amusing to see the alpha puppy looking so desperate- throbbing erection wetting the front of his underwear, the slightest tremble in his voice and body. Pathetic little puppy. My toy.

Annie closed her eyes and considered him, languidly flexing her fingers and stretching across the wooden floorboards.

Thighs spread, eyes opening halfway and a satisfied mewl.

"Mm... fill me up, puppy."