Well, I have 3 adult male cats, and 1 female. 2 of the males have done it with the female and have produced kittens. This 1 male is the odd one out. I dunno why, but the female dislikes him so much. She wouldn't let him touch her. Now this 1 male cat is spraying everywhere daily and my whole office (I keep my cats in the office, my office is like a house, not in a building or like that) smells of urine! I haven't consulted with the vet, but one day when I was buying cat food I talked about this problem with the lady owner, and she said it's a sign that he's frustrated coz he wanted to mate. Is this true? I also want to add, that out of all my cats, this 1 male is the only ginger colored cat, others are white and black, or white and gray. He really stands out from the others coz of his coloring. Is coloring a factor too? This 1 male cat, his name is Kuning btw, is the biggest, and has a bossy/dominance personality. I think he regards himself as the alpha male. I can see his bossy attitude even when he was a kitten. He's just naughty and isn't scared of anything, LOL!! So, with his alpha male attitude and his inability to wooed my lady cat, he's getting really frustrated. He also hates my other cat, his name is Kecil, he's the one who fathered the last litter. Kecil is younger than Kuning, and was taken to the household after Kuning, so Kuning def regarded Kecil as nothing, yet Kecil was able to wooed my lady cat, and my lady cat loves Kecil and is very affectionate to him. All this is making Kuning really angry! He started to attack Kecil for no reason almost daily. They would fight constantly, and I mean really fight. I was forced to separate the two and bought another cage . All these problems are still continuing to this day, with no solution. I have to keep my eyes constantly on their movements (they are in cages during the night, and are let out inside the office when I'm there during the day), and when I see one of them hissing or is about to attack, I have to separate them. To add to Kuning's insult, everytime Kuning and Kecil fought, my lady cat always always stand up for Kecil and would not hesitate to strike a blow or two at Kuning. I would feel sorry for Kuning everytime this happened and would take him aside and put him on my lap and just cuddled him. I really need all the input I can get, as I'm sitting here clueless of what to do! Oh, this is a picture of Kuning btw.. lounging lazily in his litterbox.. Kecil is in the background..