Eri is the black female in tne in the cloak and hat. Terri is the light colored male with blue hair in the green outfit.
Terri is on stage performing magic tricks and hovering some balloons, Eri is standing beside him on stage doing her own tricks involving cards.
Terri uses his magic to pop the balloons over Eri's head however. One of them is full of sticky glue, the other is full of feathers. They start falling towards Eri and cover her up good. Terri merely has a cheeky grin on his face.
Eri is now looking a lot like a chicken with all those feathers on her and worse, actually messed her diaper in surprise in fear when it happened. Terri is laughing his butt off at this.
Eri then grabs a hold of Terri with her magic, lifting him into the air. She has a smug look on her face that makes Terri suddenly look very worried.
After all is said and done, Eri, still covered with feathers, has prepared a giant magicians hat, and in that hat pops out a Terri looking super embarrassed in a gigantic pink bunny outfit. The crowd applauds as the show will go on with this being the presentation. In his humiliation, Terri messes his diaper too. Sweet revenge.