My Secret Kink in a Happy Relationship

I'm in a committed relationship that's going well on all fronts, love, trust, and respect. We've been together for two years now, and while we're both satisfied sexually, there's one aspect of my sexuality I haven't shared with my partner. It's this odd fantasy where I imagine being tied up by someone stronger and more dominant than me. There’s no reason to believe it would affect our relationship negatively or lead us anywhere unsafe, it just seems like a curiosity that has never found its way into the bedroom. The thought of surrendering control in such a precise manner is both thrilling and unsettling. Have others managed to incorporate this kind of fantasy without damaging their otherwise healthy dynamic? Is there something wrong with feeling this way, even if I never act on it?