My Secret Kink and My Partner's Reaction

I've been dating Sarah for over a year now. We're both in college and share similar interests like going to music festivals and exploring the city together. But there's one big difference between us that I haven't been able to talk about yet: my fascination with domination. It started when I was eighteen, reading online forums about BDSM and kink communities. I became intrigued by the idea of power play and dominance in a relationship. The thought of being controlled or giving up control turned me on in ways I didn't understand at first. I tried bringing it up once before with Sarah but chickened out halfway through. She's very open-minded, but I worried about overstepping boundaries or freaking her out. Since then I've just kept my feelings to myself and focused on the aspects of intimacy we're both comfortable with. But this past month, after seeing a film that explored these themes in a subtle way, it hit me how much I wanted to explore being dominated by Sarah. Not seriously, but as an occasional playful dynamic during sex. I know her being dominant over me is a harder sell given my personality, but there's something about surrendering control that turns me on. I've been so nervous telling her, but keeping it in feels toxic. What if she thinks I'm weird or twisted? Or worse, what if she gets curious and wants to explore it too much for me? But the silence is suffocating me. Maybe I shouldn't take my kinks so seriously. Maybe I just need to find a new outlet away from her that doesn't involve someone else. I know there are groups online where people share these things, but I feel guilty being honest with strangers instead of my partner. My secret is eating at me though - will she judge me for wanting this? Or turn me down outright and end up hating it more than ever? Today feels like the day to finally say something - or be forever silent about who I truly am under all the smiles and normalcy. I need to get this confession off my chest even if no one responds.