Timothy soon realized what had drawn her attention to her new sex- somewhere, somehow, she'd picked up the scent of a tom. There was a male cat out there somewhere, and her body had kicked into high gear at the thought of him. The animal part of her brain was transfixed by it- imagining his lithe, handsome, furry body, getting to smell his musk up close, and how great it would be to have the firmness of his spiked pointed phallus inside her.
Her body responded before she could even try to consciously reject the feelings. Her slit moistened and her scores of nipples turned erect, her whole body aching for a feline phallus inside her. Oh, she wanted to be mated, to be bred, her human side couldn't stop that urge.
Realizing the dog had vanished, she climbed down from the tree and started to mewl, following the scent with her nose. Her mind could think of nothing but this male's penis and how badly she wanted it. And she would get it, she had to.