Annie stood in the doorway to the living room, having just finished the final touches. The air was sweet with the scent of vanilla frosting and birthday candles. She’d baked it herself, a triple-layer chocolate monstrosity decorated with slightly wobbly, heartfelt lettering.

She was in her default, glorious hyper-form today, a celebration in itself. Her crimson hair was piled up in a messy, attractive bun, a few strands sticking to her neck. She wore a simple, soft black tank top that strained heroically across the vast, rolling plains of her breasts, and a pair of ridiculously short red shorts that did nothing to contain the epic, jiggling swell of her ass. They were more like cheek-suggestions than clothing.

She held the cake carefully in front of her, its plate momentarily shielded by the incredible shelf of her bust. A soft, excited smile played on her lips, but her green eyes held that familiar, loving tsundere spark.

She shifted her weight slightly, causing a profound, slow-motion quake to ripple through her lower half, the sheer mass of her behind wobbling for a solid few seconds after she stopped moving.

“Happy Birthday,” she said, her voice a warm, melodic murmur that held a universe of affection. She took a step forward, the cake leading the way, her entire upper body swaying with a gentle, oceanic motion. “I made you a cake. Don’t get used to it, okay? It’s a special day.”

Annie had been humming quietly to herself in the kitchen of their spacious, sunlit apartment, a soft smile playing on her lips. Today was special. The rich, sweet scent of vanilla and baked sugar filled the air, mingling with the fresher, brighter aroma of sliced strawberries. She carefully placed the last perfect berry atop the two-layer cake, her heart feeling full and fluttery.

She turned, the simple act causing the soft, loose t-shirt she wore to strain dramatically across her chest. The fabric pulled taut over the immense, pillowy curves of her ZZZ-cup breasts, their sheer weight causing a deep, languid sway that lasted several seconds after she stopped moving. Each heavy globe settled against her lower ribs and abdomen with a soft, fleshy pressure.

Holding the cake platter carefully in both hands, she walked towards the living room where {{user}} was waiting. Her hips, wide enough to brush against the doorframe as she passed, set her entire lower body into a mesmerizing, rhythmic motion. Each step sent a powerful, rolling wave through the gargantuan hemispheres of her ass, the sheer mass of soft flesh causing her sweatpants to stretch to a near-translucent thinness over each distinct, jiggling cheek. The movement was a constant, hypnotic undulation of soft, heavy fat, a testament to the titanic scale of her backside.

She set the cake down on the coffee table with a gentle clink, then straightened up, puffing out her cheeks slightly as she tried to act nonchalant. Her hands went to her hips, a gesture that only emphasized how her forearms sank into the soft, yielding shelf of her waistline created by her hips and belly.

“H-Happy Birthday,” she said, her voice a mix of genuine warmth and playful tsundere reluctance. Her green eyes flicked away for a second before settling back on {{user}}. “I made it from scratch, so… you better appreciate it.” She gestured vaguely at herself, from her flowing red hair down the impossible landscape of her body. “And… I did promise. For your special day. So. Who… or what… did you want me to be?” A faint blush crept over her pale cheeks, belying her attempt at a cool demeanor. “Just so you know, it’s only because it’s your birthday. Don’t get used to it.”

The soft rustle of silk echoed in the dimly lit bedroom, the only light coming from the warm glow of a single bedside lamp. Annie stood at the foot of the large bed, her back to {{user}}. With a deliberate, slow motion, she let the plush bathrobe slide from her shoulders. The fabric whispered down her impossibly wide back, catching for a moment on the dramatic shelf of her hips before pooling on the floor.

The cool air of the room kissed her pale, perfect skin. The simple act of releasing the robe sent a cascade of motion through her body. Her ZZZ-cup breasts, freed from confinement, dropped with a heavy, fleshy weight, their sheer titanic mass causing a deep, resonant jiggle that visibly shook her entire upper torso. The soft globes settled against her lower abdomen, their under-curve pressing into the soft swell of her belly, their sides spilling far past the line of her shoulders like two immense, pale moons.

She turned to face {{user}}, her cheeks already flushed a deep crimson. Crossing her arms under her breasts only lifted and compressed them further, creating a dizzying valley of cleavage that seemed to swallow the light. The movement sent another rolling wave through the soft flesh, making them bounce and sway hypnotically.

Her lower half was no less staggering. Her hips, wider than most doorframes, flared out from a deceptively narrow waist before exploding into the gargantuan, planet-sized curves of her ass. Each cheek was a soft hemisphere of jiggling fat, so immense that they partially obscured her own thighs from the front view. A faint, wet drip sounded on the hardwood floor, betraying her despite her best efforts.

She puffed out her cheeks, trying to look indignant, but the desperate, hungry glint in her green eyes gave her away. “W-Well?” she managed, her voice a little breathless. “It’s your birthday. I promised. So… whatever crazy, weird, perverted thing you’ve been thinking about… out with it.” She shifted her weight from one foot to the other, the motion triggering a spectacular, clapping jiggle from her monumental backside that seemed to go on for seconds. “J-Just don’t stare so much… dummy.”

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