Hello. I have a couple questions about my cat. I'll describe my situation first before I jump into any questions.
I'm currently away at college, living in a dorm that doesn't allow pets. Back home, I have two house cats (both females) that we've had for about 10 years.
We've been fostering cats for about three years now. This previous summer, we had a litter of kittens that were two weeks old, and we kept most them until they were almost 19 weeks. old. I fell in love with Oliver, a sweet buff male kitten, and decided to adopt him. My parents agreed to keep him at our house until next year when i get an apartment that allows pets (my mom actually jumped at the opportunity, and now jokes about how she's not going to give him back to me. At least, I think she's joking
So Oliver lives in the same space as the two house cats. They don't like him, and if he gets too close they'll bat at him, but they don't actively attack him.
Here comes the part where I explain the problems and ask questions.
For a while now my mom has been saying that Oliver is peeing on soft, cloth like items that are left on the floor, like blankets, pillows, and clothes. He hasn't been peeing on the rugs and if things are picked up, he doesn't have any accidents. Its also only if they are left on the floor. He won't pee on pillows that are left on a couch, or coats that are sitting on a chair.
However, I'm not quite certain its him. We've never caught him in the act. We haven't had this problem before in previous litters, so that seems to suggest that he's the culprit. However, I caught my house cat peeing on a pillow. It was on a couch, which doesn't follow the culprit's M.O. of peeing on things left on the floor. I think that my house cat would have more reason to pee on things: she doesn't like Oliver and may feel that she needs to mark her territory.
I know that males are more likely to mark their territory, but Oliver is neutered and very laid back. He's not threatened at all by the house cats.
If you have any idea why things are getting peed on, who's doing it, and how to stop it, I would be very grateful. I'm getting an apartment with some friends and I don't want their stuff to get peed on, and I'm sure they agree with me.