I have 2 inside young cats (female) and one outside male cat from the same litter. the girls are just experiencing their first heat cycle. one of them has started to spray in the house. I caught her yesterday going on a towel in the bathroom, and just now in the kitchen she went on the storage shelf?!?!?!?! I WILL not have a cat inside that sprays....... what can I do? Of course this cat is the most lovable wonderful cat I have. grrrr :help: i clean their litter box 2-3 times a day.