Hello Nonebody! I was asked about fetishes some time ago, and in this post there is an image where I mention some of them: https://itch.io/t/4054671/first-comments

That list may change: some elements may be brought forward, others delayed, some new ones may appear, and others may be removed due to censorship concerns and to avoid bans.

There will be BDSM and spanking content. I'm not yet sure about the level of intensity, but at an advanced stage of the game's development, it should be included.

I didn't know about wedgies, I had to look it up. It's something too specific to say that it's a planned part of the story, since I don't think I would build an entire scene around that action. However, it's very likely that it could appear at different moments or in certain scenes.