Caught Up in Kink

I just started dating Sarah a few weeks ago, and we decided to explore some bondage tonight. She's been a little hesitant, but when she finally let me tie her up on the bed, I felt this rush of excitement and power. As I held her wrists above her head, looking into her eyes, it was like time stopped. We both gasped when I whispered naughty things in her ear while gently caressing her body. She's so responsive, and my fingers discovered places she didn't know she liked yet. It felt intense, but also incredibly intimate. Was this normal? Is there something wrong with feeling such strong emotions during kink play? What do you think about exploring these feelings further?