I cannot comment on two yorkies. I have a Yorkie male and a Maltese female. That was also my concern. I was told so long a they are both neutured and spayed they should be fine. Chester has never tried to hum her at all and thank goodness too. She will be getting spayed in January to avoid any issues.
Chester was neutured too. Having too is deffinetly easier. They look out for each other and can not be seporated. only problem is .. it is hard to carry them both at the same time.
Other then that.. it is a lot better with two.
I was also told that males are better with children and like to play alot. Chester sure can play there is nothing stoping him once he gets started.
There are some others on the forum that have two yorkies I'm sure they can give you more advise.
