As the stone glowed, Jon's wish became "I wish you were fatter!"
Jon watched transfixed as Karen's body slowly expanded. Her sultry grin seemed to intensify as her cheeks puffed out and a second chin formed below. Her stomach grew to a full pot belly, poking out from her thin blouse. Her breasts grew to match, sagging with both mass and age. Her pants were now stretched thin by an enormous ass, which framed her every movement as she kept advancing toward Jon.
"It's okay baby," She said in her older, huskier voice as she slowly caressed his cheek. "I know you're nervous about holding your own with a real woman like me. But I'll go gentle. Mama will teach you everything you need to know."
She removed her blouse and began unbuckling his belt with her swollen fingers.
"No Karen, I --"
"All right enough talk," she said as she pulled him to the bed with a cackle. "You're cuter when you're quiet."