Worried

Idk why or if itā€™s just me but Iā€™m so scared to mention anything about Littles, BDSM, or sub/Dom play at all to my boyfriend. Iā€™ve had one relationship where I learned from my boyfriend about it before that I had no idea what any of it was. Then after that I had a short fling with someone who is really in to the little/daddy play. I donā€™t always want to be sexual when Iā€™m in the little space but Iā€™m worried to even mention it at all because Iā€™m worried heā€™ll be turned off by it. Iā€™ve never fully regressed around him, But I do a little bit most of the time and he hasnā€™t had a problem with it. It isnā€™t something I necessarily need for us to work our sex is great and everything has been pretty fine but I donā€™t want to hide it or have to worry about it anymore. Weā€™ve been together for year but is anyone else in this position or has been? How did it work out? I might just need a little confidence and get over myself but Iā€™d want to hear othersā€™ opinions