A parody of the Anime Episode, A Hole Lotta Trouble [the one with Steven Stone].
Those who have played Pokemon Ruby/Sapphire/Emerald and/or read the Pokemon Special Ruby/Sapphire Arc would get the idea of the picture.
And of course, Brock doesn't get it. He thinks Steven was hitting on May. [But Steven was actually telling the truth, game-wise and manga-wise, that is.] Also, the clueless-as-ever Ash is still clueless of Brock's assumptions. Max seems to get what Brock was saying, but remains speechless. Pikachu is still Pikachu, pika-ing.Please pardon the redundacy of the above paragraph. XD
Art (c) me
I don't own Pokemon.