My wife and I play some type of sex/foreplay game once a week just for a little extra fun. And we always try to not reuse stuff to often. Some examples are simple things like strip poker, where once you are naked your bets are sex acts. Or, my favorite, doing a random quiz but every time you get a question wrong you draw a playing card, and each card is associated with a task. Some of those tasks are pick a random male or female subreddit and describe what you like of the first 10 photos, or get into any position and get licked/sucked wherever you want. And of course the jokers are the harder challenges, like post nude pictures, have sex or masturbate on a live cam (we know the odds of these are much smaller since there are only 2 of them)

I am looking for any other fun foreplay games that are different that things like strip poker or sex dice, and preferably something where I don’t need to buy anything.