cats

hello,i have three beautiful cats.two black and one orange.i have a
big
beautiful cat that comes to my house and that i feed.he is also black
i
let him in the house, but he growls at my boys.i have one cat that is
really fresh.
but he is just so beutiful that i would love to own three black boys.i
also have a
little black one who comes down every day and eats.he rubs up against
my
cat that's fresh.how can i get them to like each other.oh boy. i would
end up
with four black boys. but they are all beutiful. need ideas.