Jon cast his eyes on the porn magazine he was using as an aid. He'd need to be careful for this to make any sense. He touched his semen to the crotch of the picture of the model and concentrated on wanting to make the image pregnant. Image, he thought. Not the magazine the image was on. Having a child be half paper would also be stupid.
Jon hadn't specified how rapid "rapidly reach maturity" was, and put the magazine down and went to bed. When he woke up in the morning he picked up the magazine, which seemed to show a picture of a model that was very pregnant. About one month per hour, he thought. How could this go?