The Wikipedia page for Paradise Kiss says (highlight from me):
In many instances, Yazawa was concerned that taking the original material straight would distract casual viewers or worse drive them away. Chief among these concerns was the handling of George's bisexual nature and interest in sadomasochism. Yazawa agreed that the dialogue should reflect this, but that actual onscreen depictions (as can be found in the original manga) were to be avoided. However, Kobayashi felt this was not being entirely true to the character, so he included a few hints of this side of George in the final episode.
The fact that George was bisexual was stated in the very first episode, by George himself, after someone comments that they thought he was gay. However, I didn't catch any specific references to sadomasochism, neither in the last episode nor at any other point in the show.
What references is the Wikipedia page referring to?
