Donald and Danny finally got tired. They put their clothes back on and Danny said, "You know, Mom will be worried about us if we don't get back."
"If we...?" said Donald. "Wait, there was only one. No, what am I thinking? I'm so confused...."
"It's strange," said Danny, "but I feel sort of confused too. I remember things being different, like we weren't like this, but I can't put my finger on exactly how. And our age... we were only teenagers, right? We weren't adults."
"No, that's not right. We were 11!"
"We were... no, we were 14. But that can't be... I don't get it, Donald. I don't know how old we were."
They left the bungalow and headed home off the island. But as soon as they left the island, the spell effects started wearing off.
First, they started to get younger. Just enough to take them back to being teenage.
"I get it," said Danny as he grew shorter and finally felt his body stop transforming. "We were 14 after all. We had just transformed into adults...." (Note: the story says they were both 11 and 14, I had to pick something.)
Then Donald's chest began to expand. His dick began to contract.
Danny watched him and said "I remember now! My name's Debbie! I'm a girl! I got hit by a spray bottle from that guard."
"That's me!" said the now female Donald, who was Debbie again. "Everything's reversed now. I'm Debbie again, I'm my right age, and I remember everything... Except that you're still here, and you say you're Debbie."
"Yeah," said Danny. "We're both Debbie. But I'm still here and I'm still a guy. Why could... Oh! I get it. The 'Twice the Man' part was a prize. The other things were just spells that wore off when we left the island, but a prize is something you're supposed to take home and keep. So we're staying this way. I bet everyone remembers us this way too."
"It's strange," said Debbie. "I go in as a teenage girl, I come out as girl and boy twins. I suppose I have to call you Danny now... does it bother you being a boy instead of being me?"
"I don't feel like a boy! I mean how can boys standing having this between the legs? It gets aroused too easily..."