(Gah! Stupid life keeping me distracted! >.< I miss out on jumping into conversations properly.)
Kaiser was preoccupied with swimming around, giving Sakura's Milotic an unnervingly goofy grin as a greeting.
Sapph, meanwhile, had climbed out of the pool to greet PB and Karen, adjusting his tank top so the scar going from his shoulder didn't show. "Well, Karen, how long has it been since you recruited me into being your replacement in the elite 4?" He asked.
(Also, the reason I went with Kaiser joining in the pool is because Tyranitar can legitimately learn surf, and I didn't remember what the 6th member of Sapph's team was after Hero/Absol, Rush/Zoroark, Darkshine/Shiny Umbreon, Don/Honchkrow, and Kaiser/Tyranitar.
Also, he has quite a few other pokemon, both of the dark and not-dark variety.)