Whenever I pet my cat, specifically when on the head, she always opens her mouth as wide as she can. I don’t think it’s anger because she’s always purring and licking our hands when we pet her. Her biological brother that we also have doesn’t do it either, it’s just her.

She’s 13 now and has been doing this since she was around 5, just wondering if anyone else’s cat has this weird habit or if it’s her own little thing