At the end of the day, if its not your thing thats ok. We all have hard limits and things we find as a turn off. Maybe it will be something you can work up to, or circle back to in the future. But like @Mrs.John said, dont be too hard on yourself.
Besides, there are plenty of other fun things you can both explore and try together. Having a wander through the forum is a good place to find ideas. Theres a massive thread of Positions of the week on here with a ton of options to look through too.
Theres been some really nice advice on here, so hopefully its given you some ideas. But getting your confidence back is a good place to begin. So don’t feel like you have to rush into stuff. Its ok to say your not ready for something.