Aaron felt strange as they walked out in the mall. All of a sudden his legs and arms felt very stiff, as if their every muscle were tensed. Suddenly, his feet began to tingle and there was a pressure in his shoes. The cheap material began to straing, and suddenly his feet burst through, rubber and cloth shreds flying everywhere. But his feet were different; in fact, they were still changing, his three middle toes increasing in length and width, his little toe vanishing into the side of his foot and his big toe moving around back. His toenails grew into short black claws, and the whole thing covered itself in crevassed yellow skin, leaving him with...a perfect pair of bird's feet?
His legs bowed outward slightly and changed shape significantly. They were now fairly bulky, with a pronounced forward bend to the knee, and...they were covered in light grey feathers. The strain proved too much for his pants, and they went the way of all cloth. He was naked from the waist down, but fortunately the feathers had moved up to his torso, so his unmentionables were covered with a layer of snow-white down. The feathers seemed to have stopped at the waist. "Wh-what's h-h-happening?" Aaron stuttered.
Sudenly, his arms were a-tingle. They expanded into two large, flat masses of flesh and bone. His shirt never stood a chance; he was now completely unclothed. The arms were proper wings now, with a covering of feathers, but Aaron noticed that, thank God, he still had hands, though they were positioned on the leading edge of the wings, like a bat's claws. He sighed. He was apparently a male harppie now. The changes were complete.
Or were they? As he stood there, observing effects of the transformation, a new wave of changes set in. Aaron grew a little shorter, and his mostly straight body lines became very curvy. His brownish-red hair became a lustrous raven black, and fell halfway down his back, changed from wiry and greasy to smooth and silky. His face softened and his skin grew smoother. His arms and hands grew slender and delicate. He felt a tingling, expanding sensation in his chest as the area beneath his nipples grew into two generous but not overly large breasts, bared for God and everybody thanks to the prior destruction of his shirt. And last but certainly not least, there was a strange scrambling sensation in his privates and he became fully a she - an adorably sexy she, smoking hot but without even a hint of sluttiness. And then it was over. She managed a single "oh my God..." in her new soft soprano before bursting into tears.
Lisa rushed up to comfort her, but Aaron, or rather Erin, suddenly realized that she was completely naked in a mall full of people. One wing clutched across her new breasts and the other covering her already-hidden nether regions, she rushed towards the mall exit, trying to make it to the relative privacy of her van.