Jon didn't even have time to complain as the wish took effect.
In an instant he found himself standing in a small white room. As he turned around he noticed his chest felt a little odd, but looking down, he saw nothing unusual. A bit more investigation revealed that he had slightly enlarged nipples and a small amount of fat disposited on his chest. He supposed they technically counted as 'tits' as the woman had wished, but they were nothing too noticeable.
Just then Jon was interrupted by a voice.
"What in Heaven are you doing here?"
Jon turned to see a small wrinkled old man wearing gold rimmed spectacles, sitting behind an old oak desk.
Jon was somewhat flummoxed. "I don't even know where 'here' is!"
The man frowned. "Here, is the pre-birth administration center, where all the souls are processed before they are sent out to be born. How you got here I have no idea, but there's nothing for it now, you'll just have to be reborn. If you'll just step through that door there," he said, indicating a door Jon had not noticed before.
"Reborn? what do you mean?" asked Jon, confused.
"The only exit from this place is to be reborn on Earth. Step through that door and the system will assign you the next available birth."
Jon didn't like the sound of that. "Er, no thanks. I think I'll just use my own exit." He looked for the rock, but realised he didn't have it.
Back where you came from thought Jon. The rock was back where it came from, and so was he. Things didn't look good.