Jon wishes Karyn was the father.

Jon held the stone and said "I wish Karyn was the father of my child." It made sense to Jon, after all he felt strongly for her and she was the closest person to him emotionally. Though technically she was the father as it was her wish that did it the stone sought to make it so she seemed like a father to Jon, yet was also Karyn. The stone filtered through images in Jons mind of his father and the fathers of his neighbors. Older men, strong from the masculine duties of the house, often with facial hair, beer bellies, or thinning hair. It also tried combining this with what it saw as being Karyn. A girl jons age, pretty and feminine, with blonde hair and C cup breasts made irreversible from an earlier wish. The stone tried to compromise as karyn changed. Karyn was still Jon's age, but her long blonde hair was thinning in the front, her feminine girly face had a wider jawline and a mustache. The mustache was not course masculine hair but silky blonde feminine hair. Her thin feminine neck had a male adams apple. Her body was more or les feminine but with broader shoulders, a beer belly, and blonde silky masculine chest hair on her breasts, her arms and legs were more muscular and hairy with masculine hands and feet, bet her manly hands ended with long feminine fingernails and they felt smooth and weak instead of rough and strong, even her muscles felt softer than those of a man as if the stone made them feminine. She still had wide girly hips and a rounded girly ass, but between her legs was a bulge as she had male genitalia. It was strange to look at her from the back too, her waist was narrow and feminine, despite her beer got she had no side and back fat, no love handles, instead the gut rose from a female torso.