Hi everybody, Me and my gf are starting to do a little fun game about doing some bets and challenges and I'm looking for new ideas!

A little context We wanted to spice up a little our sex lifestyle that's already very kinky buuut always looking for more so we came up with this little game. One of us bets that the other can't do something (like deep throating my dick) and if the other can't gets a "punishment". Or sometimes challenges like who of the two can take this huge dildo deeper in the mouth.

We haven't done much right now cause we lack ideas! Does anybody has some ideas that could work?
We are both bi and have a ton of toys and very kinky so fell free to say anything!