I am one of 4 cats that my "parents" have. My mom rescued me and my sister from a bad situation. My sister and I are not fixed, but getting fixed June 1st. The other 2 cats are both fixed. But after 2 1/2months, my mom thought that we would both be using the litter box. I have a tendency to pee in the baby's bed, my sister pees on the counters and just recently my mom's oldest cat (who's only 2) started peeing in places other than the litter box. What happened and how can she fix this?