There was something erotic about having a feminine nipple, and Jon wished Karyn hadn't made him stop. Of course, with his stone he could make Karyn do whatever he wanted.
He waited till she was partially down the steps, then made his wish. "I wish that before I was able to test the flashlight, Karyn remembered that she had a doctors appointment that would last until dinner, at which time she would come back over." Suddenly, his nipple returned to normal, because he never got to test the flashlight. Not to worry, though. With Karyn safely out of the way, he could experiment at much as he wanted to.
This time, Jon took his shirt off completely. He aimed the flashlight at his nipple, this time making it slightly larger. Jon watched in delight as his nipple resumed it's feminine form. Just like his cock stiffened from arousal, so did the nipple. Since he made the beam slightly wider, a tiny bulge was beginning to form on his chest. It grew past the radius, mainly to keep a fairly even shape. When the bump was 2 in. wide and 1/2 in. tall, and the nipple was 1/2 in. long, they stopped growing. He quickly realized that was as feminine as he could get on that shape of pink. An easy fix. He turned it all the way to the deepest pink (which was practically red) and sized the thing to cover half of his chest. This time, Jon wanted the whole thing.
After several minutes, Jon had two perfectly feminine breasts. He knew enough to know he now had perfect E cups, extremely perky, the kind he used to love on other girls. His nipples were so hard they practically stuck out 3 in. Of course, his cock was bone hard, and was extremely hot against his abs.