All characters are above 18 years old....

....

The satisfied grin on Jenny's face was a predator's smile. Aaron felt a power he'd never known, a heady cocktail of control and forbidden pleasure. He wasn't just in her body; he owned it, at least for now. He looked at his own discarded form on the floor, a pile of bones and awkward limbs, and felt nothing but contempt for the boy he used to be.

"Well, Aaron," he said, his voice a husky, feminine purr. "Time for a more thorough examination. For science, of course."

He turned back to the mirror, his eyes roaming over the curves and valleys of his new form. The first orgasm had been a revelation, a taste of a paradise he never knew existed. But it was just an appetizer. He was starving for the main course. He let the towel drop again, enjoying the way the cool basement air kissed his new, sensitive skin.

"You know, Jenny," he mused to his reflection, "you've always been so prim and proper. So concerned with what everyone thinks. Let's see if we can find that dirty girl I know is hiding in there somewhere."

He sauntered over to an old, dusty armchair in the corner of the basement, the one his dad always swore he'd reupholster but never did. It was a ugly, faded floral pattern, but it was sturdy. He positioned himself in front of it, his hands on the worn fabric.

"I've always wondered what this looks like," he said, glancing back over his shoulder at the mirror. He took a deep breath, bent his knees, and leaned forward, sticking his—Jenny's—ass high up in the air.

The view in the mirror was breathtaking. The round, firm globes of her buttocks were presented perfectly, a sight he had only dreamed of from afar. He could see the delicate pink folds of her pussy peeking out from between her thighs.

"Holy shit," he breathed. "Okay, that's... that's a work of art."

He reached back with one hand, his fingers exploring the soft flesh of her ass. He gave it a light slap. The sound was sharp and surprising, and the sting that followed was even more so. It wasn't painful, not really. It was a hot, tingling sensation that spread across the skin, a delicious preview of the pleasure to come.

"Oh, you like that, don't you?" …