I have a one year old male that is a little lover and I got a 12 wk old female a month ago. The first two weeks were constant stress bc my little girl, Bunny is very fiesty and has a dominant personality that makes up for what she lacks in size. They are now best friends and attached at the hip, but I will say that I was a little worried for Tino bc he acted really depressed at first, but that quickly went away. I just think your situation is different bc your yorkie in 9 years old and won't be as tolerant of a little puppy crawling all over him. I have also hear that its best to mix genders... boys have domination issues that come through in marking problesm and that two females together can be very high strung, whereas they would be more relaxed in a different situation. |