Christina decided she had better at least play along and make an attempt to catch the flies. She didn't want to end up a fly herself, or a squished toad under the witch's boot. It was not only the witch's giant size compared to Christina's tiny toad body, but also her wanton cruelty to this point that convinced the former woman she was capable of doing more terrible things.
Christina hopped toward the flies, when her toad instincts took over and she lashed her tongue out at the nearest of the two. The sight of the large toad's mouth opening and tongue flying out snapped the former female jogger, (Christina was pretty sure it had been the dark haired one), out of her temporary disorientation over suddenly having a fly body, and with the agility granted by her new insect form, she darted upward in an attempt to escape being eaten. Christina was lightning quick and she would have caught the fly before the doomed jogger could react, however, her aim was off and she undershot the fly by a hair's breadth.
The former jogger turned fly quickly darted up and out of Christina's view. Christina wondered for a moment how the escapee would fare, as she would most likely be spending the rest of her life as a fly.
Her actions however did please the witch who burst into laughter at Christina's almost successful attempt. She became aware of movement in her peripheral vision as her toad partner bounded after the second fly.