After clearing away his breakfast things and heading up to his room to get dressed, Zack took off his pajamas and stood in front of the mirror naked, having had a sudden realization. As mentioned, he could be a bit perverted, and this idea was decidedly pervy. But, he thought, justifying it to himself, he'd tried a tiny change and a slightly larger change... how about a big change?
He focused on the thought, and thought it. /I wish I was a girl version of myself./
The tingling sensation that had accompanied the earlier wish about his hair returned, much stronger this time. Before his eyes, his body started to transform from male to female. His facial structure and jawline softened, his features turning prettier and his lips puffier as his hair lengthened down to and then past his shoulders. His arms, legs and figure also slimmed, and his hands and feet became more small. His body smoothed all over, with his skin turning more supple and less coarse. His hips widened and his butt filled out, his figure grew curved and his shoulders shifted inward slightly, giving him a distinctly lithe, feminine figure.
By now only his genitalia was still masculine, and the wish at last set about adjusting this. He saw his nipples swell and felt them grow vastly more sensitive, his soft hands moving to rub and pinch them out of curiosity as mounds of flesh steadily grew on his chest. Something started to shift in his mind as her breasts grew- she was slowly starting to see herself as a girl. Instead of feeling attraction to big boobs and moist vaginas, she felt attraction to firm masculine chests and thick penises.
With this, his body started to be emasculated. His penis shrank rapidly away, the former receding and growing more and more sensitive until it formed her clitoris. His balls moved up inside to become her ovaries, and his scrotum sank inwards until only a small mound remained- a slit opened out down its middle, and she realized this was her new vagina.
Zara looked at her new form in the mirror, and realized...