of Ash as a diapered Pikachu and Mew offering support to Ash's recently transformed mom Delia who is trying to master floating on her new Raichu tail, when she starts getting even more used to enjoying her nice and full Pokemon pampers, remarking that now she can see why Ash would want to stay in his mushy diapers longer during changing time, much to Ash's embarrassment.
Oh well, still a cute and happy moment for all parties.