Maybe it’s not strange but I’ve certainly never had a cat do it!
She was sitting on the window sill, and I was standing there too and we were just watching together, I was petting her and talking to her. All of a sudden she turned round and put both her paws right up on to my chest for a few seconds, like a dog would, so she was standing upright on two feet. I was actually quite surprised.
She’s 4, and she’s never been around dogs (only potential thing I could think of).
Anyone else’s cat done this?