The cat realized since day one that while it clearly had the physical strength and prowess to take down this much larger and intimidating dog by itself, it was far better for its own wellbeing in the long run if she won the monster over with her charms. She would become its master and he would become her slave. These are the nefarious schemes of a cat who can clearly be seen having the time of her life.
Meanwhile the dog has completely been subdued by the cat's charms and can be seen guarding the little creature with fierce eyes, scanning the horizons for any predators that could also include the owner. If so, watch out, the dog could just lunge at you at lightning fast speed. The jaws will swipe at you and he could just draw in blood.