My female was like that with the cats. The cats were not afraid of her and would start with her all the time. I taught her leave it and it worked sometimes. She completely grew out of it as she got older and now she sleeps with them. My male wants to play with them but he is to big and to vocal, just overbearing, he is a work in progress.
Misty- Samoyed Mix, Tannor- Golden Retriever CGC
Robyn- GSD CGC, TC, Midnite-GSD CGC,TC, Brennan-Golden Retriever CGC, Batman-Husky/Greyhound , Apollo-GSD