As the huge female grizzly bear padded toward Circe's pool, she began to shrink. The dwindling size did not concern her as much as the confusing thoughts, memories of walking on two legs, of being... male? By the time Derrick reached Circe, he was the Wild Boy again, crawling on hands and knees. She smiled as he rose up on two legs, uncertain at first, but then easily balanced. "I've been a bear!" He was amazed at the clear memories of both his male and female forms.
Circe chuckled. "You certainly have! Quite formidable as either sex. And you have a few days left of your actual two weeks. The time you have spent as a bear was condensed so that you have some time left before your family leaves in two weeks. There are some new bears in the woods thanks to your actions. The male from your first mating is full grown. Would you like to see him?"
Derrick nodded, and moments later a large black bear lumbered onto Circe's patio. Although the animal had claws and teeth that could rip him apart, Derrick felt no fear. He approached, looking the beast over before giving it a hug. The bear was confused, but somehow picked up some sort of bear scent on the boy. This was his father. Yet there was also a female scent. The young male reacted as expected, his cock sliding out pink and rigid. Derrick noticed the erection immediately, and gave Circe a questioning look. "Could I be his female for the last of my vacation?"
"Only if you are willing to try something different." Circe raised an eyebrow. "I want to watch you pleasure him with your mouth. Do that and you will leave here as a female bear pregnant with his cubs."