Pressed against the wall, Parker had no place to run from this huge animal. The bear kept snuffling and licking him, its attention getting more insistent. Even more puzzling was Carter finding the bear's odor, which had first been a rancid stink, was becoming more appealing. The smell wasn't changing - his nose was. Along with the rest of him. Carter's pajamas tore apart as his body rapidly swelled out, dark fur emerging from what had been human skin. He was turning into a bear! And Carter remembered enough about being an adult to recognize the odd sensations that were starting to come from between his legs. His hind legs. Her hind legs. He was turning into a female bear.
No! He did not want to be an animal, to be the former boy's mate. He could feel the tears roll down his swelling face, still able to cry in despair. "Please! Let me stay a boy! I won't tell anyone! I'll be happy as a little boy! Please!" Parker continued to get larger, dropping down to all fours as the male started to rub against him. But his mind still seemed clear. The purple glow dropped from the ceiling, and Parker saw it was a tiny flying humanoid, looking like a boy with purple hair. It was obviously watching him, though Parker couldn't tell if it was with malevolence or curiosity.
[The former human who is now interested in mounting you will remain a beast.] Words appeared in Parker's mind. [You can still return to your previous form, a twin to a child. But you will always know you were grown before, and remember your family and past. As a bear you would become an animal in all ways, without the knowledge of your transformation. I can see some potential enjoyment watching you live as a child, so I offer a choice. Which must be made now.]
Parker was already weakening mentally, the need of a female in heat starting to cloud his thoughts. Would it be better to let it all go and spend the rest of his days as a normal and content bear? Or did he want to start over as a little boy, forced to act his physical age even though he remembered his adult past?