Hi I'm new and a little help!

Hello there fellow cat lovers! I currently have 5 cats, 4 of them are black they're inside and 1 calico who is outside, 2 male 3 female. Thor is my oldest, he is 12 then I have Luke he is about 7 or 8. I have Molly and Midnite they are 30 weeks old. Finally Pepper, I have no idea how old she is.we had a roommate who went to jail and when he got out he never came and got her. Luke is a very mean cat, he growls, hisses, smacks and even bites my kittens! They don't have to do anything. But Molly has been getting into heat for 3 months now and she does try to "seduce" Luke and it's just getting out of control. They keep my mother and I up all night, we haven't had a full nights sleep in a very long time due to Luke and Molly.So I guess what I'm trying to get at is what can I do? I hate seeing them like this but I love them all and do not want to get rid of any of them.

Hi cupcade and welcome to TCS!
The easiest way to ensure more harmony in your household would be to get them all spayed & neutered. Especially the females if money is too tight to get them all fixed. That way they will be happier and calmer, and you won't have to deal with any more kittens coming along soon!

Hello! Thank you very much Everyone is fixed except the kittens. We were going to wait till income tax time but we will have to do it soon! Thank you for your input. (:

Hi, welcome to TCS! 

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hi welcome along to tcs