Oscar is neutered for a month now, so due to my vet his ormones are fine and he has no sexual rushes. But he keeps having a habit that he firstly presented at the age of 3 months. He bites a piece of a fuzzy material (his bed for example) and massages the rest of it. I noticed he gets pretty excited when doing it and he also has...his penis up and happy. The vet said it's just excitement and I believe her. But I would feel better if I knew another bunch of male cats does this too.