This app does pillow talk so you don't have to

It’s designed to work a little bit like Tinder, in so much that there are 99 special interests grouped beneath headers such as group sex, voyeurism, BDSM, roleplaying and “Gimmicks,” an odd list that includes making love on a washing machine during a spin cycle. At the presentation of each fantasy, you can say that you’d like to try it, you’d do it for your other half, or drop a big “X” onto it if it’s not your bag at all. Once both of you have entered your fantasies, it’ll list only the ones where you’ve both agreed to it, which should serve as something of an icebreaker in a delicate situation.

Or you could try having a real conversation with your partner.