"Hey, I just had an idea. Elly?" Joey calls out.
"Yes, Sir?" All four piped up, turning to face him.
"I'm giving you a new ability. You can now merge or split whenever you like. So you can be four 6 year old girls, 2 12 year old girls, an 18 year old and a 6 year old, or one 24 year old girl. I'd like three of you to merge now."
"Ok, Sir!" Three of the little girls joined hands, and began to glow. Their bodies came closer together, and there was a bright flash, and an 18 year old version of Elly stood there, quite naked. The 6 year old Elly looked up at her other self, then back towards Melissa and Joey.
"Wow, that's pretty neat, Wish boy." Melissa nods, impressed. "Let me see the 12 year old version again."
"Elly, if you don't mind?" The 18 year old nodded, and split...into a pair of 9 year olds.
"Uh, Sir?" They spoke in unison. "I don't think this was intended."
"Huh." Joey cocked his head to one side. "You're right, but it's kind of neat. So if you divide further, you'd be...4 year olds?"
"4 and a half, Wish boy. Learn to math." Melissa rolled her eyes.
"Still, it's interesting, this is the first time I made a wish that didn't work exactly like I said. I wonder why? Ah, Elly, why don't you all merge together now?"
The three girls nodded, and re-enacted the ceremony, becoming one woman again. "Sir, I kind of like being able to do this, thank you. 18 is old enough to perform my duties, so I could work and play at the same time?"
Joey nodded. "Absolutely. Though I was going to have some...fun with Melissa, we'd have to find you another playmate..." He had a thought. "Or make more Melissas?"
"No doing, Wish boy. If you made two of me, I'd run off with myself." She grins. "Best I stay unique."
"I guess you have a point, you're one of a kind. Guess we need to find little Elly a friend." Joey nodded.
"Or make one?" Melissa grinned.