"I'm a kid!" Derrick felt his cheeks and then rubbed his penis, which was now uncut. "I'm uncircumcised! That is so cool!"
Hebe chuckled. "Indeed! I am pleased that you are enjoying my work. I did not expect someone already young to be so.. enthusiastic."
"Well, this is just for the vacation, right?" Derrick frowned. "I'll be normal when I leave here?"
"Of course!" Hebe smiled. "I promise you will be perfectly normal when you leave this Spa."
Derrick flushed. "Um, I'd like to keep the foreskin, though."
"It is yours to keep!" Hebe ran her hands over Derrick's shoulders and chest. "So, what else could I change for you? Would you like to be a different race? Different hair color? A change of eyes? Perhaps you would like to be nine, or six? How would you like to spend your vacation as a toddler, or an infant in arms?
Derrick stared up at her, amazed. "You can really do all that?" Then he flushed again, feeling stupid. Of course she could - he was 11 years old and uncut. "Umm. Magic is really cool! I mean, I'll never get a chance to experience stuff like this when I go home. so yeah! I want to try as much as I can!"
Hebe smiled and kissed the top of his head. "You are such a charming little man! Let's see what we can do so that you can experience as much magic as possible." She started sliding her hands over his arms and chest, then used her fingers to rub his penis. Instead of getting smaller, it lengthened and thickened, the new foreskin stretching to fit. When she was done, he was still prepubescent, but the former nub was now thin, but several inches long. "When you reach puberty again, this will blossom into quite an impressive rod. I assume you want to keep that as well?"
Eyes wide, Derrick nodded and grinned as he felt the elongated penis and slid the foreskin back. It felt weird, but good. "Oh, yes, please!"
"Now, let us see about some more interesting changes." Hebe looked at him thoughtfully. "Perhaps a change of nationality? And of course, the appropriate race and coloring. Do you have a preference?"
Derrick stared at his brown-haired, brown-eyed Caucasian reflection - he as cuter as a kid, but still pretty average. "Yes, please! I'd like to be..."