i did something i'm not sure if it was a mistake or not

so my partner and i have been together for like two years now and everything is great. we've tried so many new things, she's always willing to explore stuff with me, but there's this one thing that's always kinda bugged me. see, when i transitioned i started doing these leather harnesses under my clothes, just because it made me feel strong, in control. and for a while now i've wanted to try wearing them out during sex or even just around the house, as a kind of power play thing. but she's never really into stuff like that - i mean, we talk about it but nothing ever comes of it. so last week i was getting ready for work and decided to put on my leather harness under everything, not planning anything special or telling her. just wanted to see how it felt all day long. the weird part is, she noticed. didn't say much, but the look in her eye...i could tell something changed. later that night we ended up fucking pretty hard and rough, even though she never really gets into hardcore like that normally. afterwards i told her about the harness and how i was wearing it, just because i wanted to try. but now i don't know if this is a good thing or not. do i keep doing this without telling her? or tell her outright that i want to wear leather under my clothes all the time, as some kind of fetish for myself? and what about trying it during sex with her knowing? like am i being selfish here, just wanting something i want regardless of whether she'll get into it or not? or is it okay to explore this stuff on my own, at least for now?