I think that if you get a compatable female for Maximus while he's still young it will work out. Now, I can't say 100%...but all of mine get along

As for the mating issue...all mine are fixed and the still go at it... they have their wants... lol It's mostly Chachi going after Molly. He won't go near Suzie (his baby) or Izze. His one true love is Mol
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Chrissy, Izze (Yorkshire Terrier),Molly & Suzie (Toy Poodles), Chachi (Chihuahua)