My Kink Secret and My Partner's Reaction

I'm an artist who's been in a long-term relationship for over two years now. My partner is incredibly supportive of my art, my passions, and my general sense of self. But there's this one thing I've always kept secret from him, my fascination with handcuffs and bondage play. It started as a curiosity back when I was experimenting with different kinks, and it has grown into something that really turns me on. We talk about sexual health all the time and have even taken safe words to heart in our playtime, but this particular aspect of sex has never come up between us. The thing is, we recently rented a hotel room for Valentine's weekend, and one of my artist friends gifted me handcuffs that are beautifully designed, sleek metal with an elegant aesthetic. I brought them along as a conversation piece; I thought maybe we could talk about different aspects of art together. But the more I looked at them in that dimly lit hotel room, the more they made me think about using them on myself or even during our playtime. It was all too tempting, and it felt like an invitation to explore. Last night, as my partner was sleeping soundly beside me, I decided to slip one cuff around my own wrist while in bed. My heart raced with excitement and a bit of fear at the same time, what if he wakes up and sees this? The thought made me blush furiously but also sent a thrilling shiver through me. Luckily, he didn't notice right away when he woke up; I quickly slipped it off my wrist and placed them on the nightstand. He asked me about the handcuffs, and all I could manage was a quick lie about just admiring the design. But in that moment of almost getting caught with my wrist cuffed while we slept together for the first time since receiving them, I felt incredibly conflicted. I'm not sure how to broach this topic without worrying he'll feel uncomfortable or disappointed in me. Should I tell him about my interest and hope for understanding? Or should I keep these handcuffs as a secret indulgence of mine? It's a strange thing to think about, but seeing the handcuffs has made our room feel more intimate than ever before, even if it comes with an element of guilt and uncertainty. Maybe that's just part of what makes this kink so intriguing to me.