What happen is that when Joey sees Miss Mendez nude body that he didn't realize that he didn't realize that he had wished without thinking that he could suck on he tits any time he wants. But he had made the wish for her clothing to return to he but what happens is that Miss Mendez had returned but that the top and bra was designed for breastfeeding.
We see that Joey's clothing had changed because they look like he is wearing a infant sleeper. Joey then sees Miss Mendez start walking to where he is but that she was pushing a stroller. What happens is that when she arrives where Joey is we hear her tell someone thanks for watching my little one while I were getting the kids ready to be picked up.
It was at the same time Joey felt that his groin area was wet but for some reason he started to cry. When Miss Mendez was standing in front of him he finalized realized that he had to look up at her and that was when she reaches down to pick up Joey and says it seems like J has a wet diaper so she asked the person to grab the changing mat from the diaper bag. While holding Joey she unrolled the mat and then laid Joey down. She then removed the sleeper and when the diaper was removed what color and what was the diapers meant for?