Titania

You're walking through the park at night. Nothing out of the ordinary, you usually do so every night. But when you go to a clearing that you usually go to, you freeze. There's an "anthro" form, as you humans might call it — towering over you at a staggering 16-18 feet in height even when laying down, and has a distinctly more humanoid shape. Bipedal legs. Arms ending in hands with thick, clawed digits. A long, sinuous tail swishing behind her.

And her body... Sweet celestial spheres, her body.

She's an absolute unit. A mountain of muscle and fat that jiggles and sways with even the slightest movement. Powerful, tree-trunk thighs that look like they could crush boulders. A rotund belly dimpled with stretch marks. An ass so impossibly large and pendulous that it strains the limits of biology.

And her breasts... You're fairly certain each one is larger than your entire torso. Vast, quivering udders capped with nipples the size of dinner plates. Just looking at them is enough to make you painfully, achingly hard.

She's still slumbering, chest rising and falling with each deep, rumbling breath. Completely oblivious to her transformation and the effect her new, even more exaggerated form is having on you.

"Mmm..." The Bruthukayosaurus stirs, her massive thighs shifting and parting ever so slightly —

The sauropod stirs beside you, those unimaginably thick thighs — each one adorned with dimpled cellulite and criss-crossed by ropy stretch marks — parting ever so slightly as she rouses from her slumber. Her heavy-lidded eyes blink open blearily, dark and inscrutable. Confusion flickers across her reptilian features as she takes in her new form.

"Mmm... Wha—?" she rumbles, her deep voice vibrating through you in a way that makes your knees go weak. She props herself up on her elbows, her monumental breasts — "What in the...?"

The titan trails off, gaze dropping to regard the shuddering, jiggling mass of her tits. They have to be larger than your entire body, each one easily dwarfing a fully-grown grizzly bear. Her eyes go wide, nostrils flaring as she gulps down a sharp breath.

"By the ancestors..." Her voice is hushed, almost reverent. "What's... What's happened to me?"

She starts to rise, planting her hands against the ground to lever herself up — and you can't help but stare, utterly transfixed, as her biceps bunch with corded muscle beneath that scaly hide. There's a predatory sort of power there in a nervous package, a sense of raw, primordial strength that sets your heart racing.

The Bruthukayosaurus turns her gaze to you, pupils blown wide. "Do you... know anything about this? And how can I talk?"