Karyn became the Goddess of Vengeance.
She was mildly annoyed about the wish that had given her the new blonde hair and large breasts she hadn't been enjoying. The Deity Stone latched onto that and made it the overriding part of her personality as a Goddess.
Now she knew what she was and what she could do--anything she wanted.
"Fucking Jon and his grandfather, if it weren't for them I would never have gotten these things." With a thought she changed herself back to her original body.
"That damn wishing stone, it did this to me, I know it did. I should have it here, now." And suddenly she held the stone in her hand. Clapping her hands against it, she erased it from reality.
"Fucking Jon, I know he was probably wanking to the thought of me with those huge tits." Indeed, reality altered so that Jon had been jacking off all night to the thought of seeing Karyn with her enlarged breasts.
"I wonder how he should be punished for that..."