We have two females- Ziva (3 in May)- The busybody, alpha ,runt of the litter, follow the rules Yorkie. We recently added Abby (6 months) a sweet, laidback, nothing is a problem, slightly silly baby. I picked her from a litter of 5 specifically for her personality (not her looks
) Abby was just spayed last week so I didn't have any chance of female issues. So far it has been great and has made Ziva "lighten" up a little. Two is more fun and Abby is NEVER a problem, she is soo easy going (not like Ziva as a puppy!)