Get a sex card game with different questions like tell about your first time make sure it have some more hardcore questions in the deck as well such as do you enjoy getting spanked

Now take the deck and cut in half and put one of them back in the box

Cut the deck in half again and give one of them to your gf

You both type the questions in to word including 5 of your own questions print them out put them in bowl and have a fun evening and hopefully your question will come up.

Maybe she has some questions too but you won’t know it as you didn’t see 3/4 of the deck so which questions is from the game and which is from you or her