Shameful Secret

I never imagined myself as a Mommy figure, yet here I am, struggling with the truth. We've been together for years now, and lately, he's asked me to take on this role, guiding him like he's younger than me. It's intense, but it turns me on in ways nothing else ever has before. Tonight was different though... he wanted more discipline. He pleaded with me to spank him until his bottom was red, to scold him for being disobedient even when there wasn't any actual misbehavior. I gave in because he needed it so badly, and somehow, that made everything feel realer than ever before. But now I'm terrified of where this is going and if I should continue. Am I losing my mind or is this just a part of us exploring together? What do you think? Is there something wrong with me?