Some information, we have 3 animals (all sterilized):
- Mia, a 1 year old Female cat.
- Bentley, a 2 year old Male cat.
- Stella, a 1 ½ year old Female dog.
Both cats never go outside except for the balcony.
About 2 weeks ago, Mia began urinating on Stella's pillow every now and then (every few days). We washed it every time on sanitary cycle (a 3 hour cycle!!). After a few times, we decided to just trash the pillow thinking the washing machine couldn't get the smell off. But then today Mia urinated on our bed.
I'm wondering why she suddenly started doing this. We have 2 litter boxes and clean them every day. Bentley has never urinated anywhere else but in the litter boxes.
What can we do to solve this?