When Jon woke up in the morning he couldn't wait to get to school and see Karyn and the changes he "thought" where going to happen. When he arrived he found Karyn outside by the wall there where first at the other day. Just before he met her there his boobs swelled and broke through his cloths. All the changes he wished for happend. Yet since it had to be natural to everyone all the men in the two mile raidus grew boobs and all the girls lost them, execpt for Karyn and Sarah for that would interfer with the earlier wishes.
Not only that women then decide to take this chance and gain more power forcing men to be less payied and have to help by feeding the new babies. Jon still had the rock with him and wished for...