Not exactly sure. Some say it is a bad sign and some say it is a good sign. To me I believe it to be a good sign because all the while she is waggin her tail she is scenting all over and urating and pooping and pushing out her glands and draggin it on the paper. I think she is being receptive to the male being introduced to her. Even though in the vid the Pinstripe is running for the hills! LOL He is still young though at 450g so he may need some time to mature yet.