Zero clue what does Pokemon or Mahou Shojo have anything to do with this image. I'll add the appropiate tags and leave these confusing ones be in the meantime.
Ig I know where did the artist take inspiration from. There was once a vid w/ a dude and a girl in bathroom, while the guy was *ahem* inserting the mentos in her butthole and holding coke in his other hand, the gal was lying upside-down in a bathtub. Then the mentos react with coke and the whole bathroom is flooded w/ coke-mentos mix from butthole.
