After the success of his initial experiment, Fred is surprised and delighted to see his twin nephews continuing to change, looking ever more like egg-hens. He decides they need a rooster, and has just the candidate in mind.
This was an idea that was in my head for a long time. A guy getting TF'd into a rubber kangaroo anthro by latex and making an unsuspecting victim into a joey by stuffing them into her pouch. I wrote this primarily to get that idea out, but I'm kind of satisfied with the result.