Im afraid it sounds like a hormonal season thing!only way to stop it is to identify culprit and keep outside when in season,or prevent season with drugs/herbal remedys,or mate!!as you dont want to spay,the males are obviously weeing on top of the girls scent.Its nice to know your not alone with these things
my girls have recently had babies so ive had a break from it!but one has just come into season,so im keeping an eye
at least they are not peeing on ya bed!