Derrick thought for a moment, then said “I would really like to stay like this, to stay twelve."
Hebe's smile widened. "It is a good age, is it not? Old enough to be independent, but young enough that no one pays you attention, or expects anything from you." She reached up and stroked his cheek with a finger. "Still the early bloom of innocence. Yes, you will stay just like this, stay twelve."
Derrick felt a curious sense of disorientation, followed by confusion. What was he doing here? He was in a stone pool, naked, with a lady smiling down at him. She stroked his brow and said "Now, then Derrick, my lovely little man, go out and enjoy yourself as one of the many wild children of the resort." Derrick's hair lengthened and became tangled. His skin darkened, partly with the tan of one who never wore clothing, and partly due to the stain of dirt that came from never bathing. A crust of mucus formed around his nostrils, and his teeth grew scummy.
Derrick scowled at his reflection and the water he was sitting in. "I don't want a bath!" There was grit in the pool - had she already started washing him clean? He scrambled up, and she helped him out with a laugh.
"There, there, boy. You have spent far too long being our Peter Pan to be washed clean with a single bath." Hebe tousled his wild mane of matted hair, and the gesture scattered Derrick's thoughts.
When his mind cleared again, Peter grinned and scampered away from Hebe, dodging her reaching hand. "You won't ever get me respectable, Hebe!" She had been trying for decades, and failing every time.
The elegant young woman chuckled. "Oh, I am quite sure that you will be just as dirty and smelly and young as you are right now a hundred years from now."
"Five hundred!" Peter shouted happily and ran out a side entrance that would take the now-forever child out into the woods that surrounded the Spa.
Hebe grinned as she prepared for her next patient. Derick would remain twelve years old forever now, a dirty urchin who would delight visiting children and adults as Peter Pan, the no-longer mythical character from fantasy.