Caught in the Moment

Last week at work, I had this wild Daddy moment with my sub. We were alone in a back room, and she's been testing limits lately. One day, after closing, she pushed just right, too far. I lost it then, but not angrily; something primal took over. She looked so small standing there, challenging me. Before I knew it, I had her backed up against the wall, pinning her wrists with one hand while the other smacked her lightly for being naughty. Her eyes went wide, shocked and turned on all at once. After a minute of this, she melted, whispered sorry, and I let go. We cleaned up quickly and never spoke about it directly again.