Ten years old!? That what about the age of the boy looking back at him from the rippling water. He recognized the child from his old school pictures, though his hair was much longer and shaggier than it had been. "How?" He winced at the boy's voice. "This isn't possible!"
Hebe laughed. "Silly boy! Do you not believe the evidence of your own eyes?" She cupped his cheeks in her gritty hands and slid then down his neck, shoulders, and sides, leaving a thin trail of mud, then used both hands to tousle his hair. The resulting brownish paste plastered the fine hair down and made it look like he had been playing in a mud puddle. Bewildered, he stared as she cupped her hands and scooped up water that she used to wash away the dirt. It took moment to realize that his reflection was different - younger!
"No! Please!" Derrick pushed at the hand reaching up to caress his cheek, trying to keep her from touching him. The other hand slid under his buttocks and down one thigh, leaving a dark swirl in the water. That was joined by a murky yellowish cloud from his tiny nub as his bladder released. "I don't want to be a little kid!"
Hebe grinned and touched the tip of his nose with a finger, leaving a tiny spot of mud. "But you wanted my treatment! I do not want to short-change you. Besides, you are becoming so cute!"
Tears began to run down Derrick's cheeks and he trembled in the warm water. "Please! I just wanted to be with you! I thought you were pretty!" He stared down at the reflection of a boy closer to 9 than ten now. "I didn't know this would happen!"
"I almost never have a customer complain about getting too young!" Hebe sat on the edge of the pool and grinned. "Think about it. You get to start over, with all the knowledge you had before. School will be so much easier, at least until you are back in high school." She ran a hand back down his chest, leaving another tail of brown that she rinsed off. It was age, Derrick realized. The mud was time and age being drawn out of him, becoming the sludge that was washed away. He stared up at her, terrified and overwhelmed. She stroked his cheek, and then slid her hand under him again.
Derrick shivered as another cloud of grit swirled, and more urine floated in the water. "Please, stop. I have friends, my family."
"I don't think your old friends will want much to do with a little boy who wets himself whenever he gets scared or upset. But then, that kind of behavior would be expected from a toddler." Hebe rinsed the stains from his skin and he watched in wide-eyed horror as the reflection lost more months, now a solid nine working back to eight. "And your family will remember you as being whatever age I send you out of here as. I could even return you to her womb, months from being born." She paused and looked thoughtful. "Of course, then you wouldn't remember anything."
"No!" Derrick recoiled at the thought of being unborn. "Please, I'll do anything! Don't make me a baby!"