I also really enjoyed your story so far. My only distraction came at the beginning of the story. Your Dom is supposed to be very picky, very particular - searching for someone special, yes? But the only thing that makes your protagonist stand out is that she is new to the scene. Maybe he is looking for someone who enjoys spanking or hard bondage but that is not obvious to the reader nor is why she is interested in him.

Look forward to reading more - keep writing please.