It's a dominance behaviour. My spayed female Maltese started doing it a year or so after she was spayed. Being a man, my husband found it amusing, but when she started showing other dominance behaviours...like ignoring the rules (potty training is one of the rules) and getting more aggressive in her play (she actually hurt Nash and he had to have stitches above his eye), he was finally convinced to stop treating it as an amusing behaviour and help me stop her.
Occasionally Candy will raise up and put her front paws on Nash's back, but then she stops and looks around...she knows that is not allowed! It took several months for her training to reassert. So, if your baby girl is humping AND her discipline is breaking down, I suggest she not be allowed to continue. It is dominance behaviour and she's trying to tell you that SHE is in command, not you! |