Ty wished the person knocking would leave him alone, and he could tell they had gone. It was probably just his parents or Dustin anyway, and if it was someone more important, he could always wish them back. Now, what to do with his body next?
He knew he could change the proportions of people's bodies, he thought, but what about their sexes? That might be fun to try, turning himself into a girl. The idea was growing more enticing by the second. His heart racing, he rushed to the bathroom, locked the door, and undressed. He removed his T-shirt again, undid his jeans, slid off his boxers and stood naked in front of the mirror, seeing what was unequivocally a teenage boy's body.
Staring at his reflection, he took a deep breath and whispered, "I wish I would turn into a girl."
The tingling sensation returned, but this time Ty felt it through his whole body, and it felt more intense. He felt his body start to reshape, his arms and legs turning more lithe and petite as they shrank, his figure receding inwards, his shoulders narrowing, his hips widening and his butt filling out. His face and neck started to change, his neck narrowing, larynx shrinking and voice increasing in pitch, jawline softening, cheeks turning rounder and lips puffier. For a moment he felt like he had goose bumps all over his skin as it shivered and smoothed, most of the hair on it thinning or vanishing. On his head, the opposite occurred as it lengthened down past his neck and shoulders.
Ty's breath hitched as the tingling sensation seemed to concentrate in his chest and crotch. His nipples expanded and grew sensitive, and as he breathed heavily he felt and saw flesh accumulate around them, breasts sprouting. At the same time, the hormonal changes in his head were taking effect- she was starting to feel like a girl as well as look like one. Fantasies about having her boobs played with were emerging in her head.
All that remained of his boy's body was his penis, and this too started to transform now. The shaft receded inwards, losing its length and growing more sensitive as it did, and his balls pulled inside her, a feminine passage forming inside. Vaginal lips formed from his scrotum while what had been his testicles and were now her ovaries joined up with her new womb, and the nub that had formed from his penis settled into place as her clitoris.
Ty took a little while to focus again, but when she saw her new body, she was amazed. She really had completely turned into a girl, and she kinda loved how she looked. She wondered what to do next...