The first thing Mary did upon leaving the bathroom was to grab the Dog vial and take a couple more sips, hoping she would notice some more changes by the end of the day. After leaving a note at her workplace that she wouldn't be in for a few days, perhaps longer due to 'personal reasons', Mary cleaned up around the house to pass the time.
As the day went on she noticed that her nails had gotten to be somewhat pointed and curved at the end and that the bumps under her breasts had formed into nipples. She was wishing the changes would speed up a bit as she set about setting some food out for Ranger, her mixed-breed dog. The sound of the food being put into the bowl soon attracted the dog's attention and he eagerly watched as Mary crouched and set the bowl down before him. Instead of eating the food though, he affectionately licked Mary's hand. Mary gave a little laugh as she rubbed the dog's head, but her laughter was cut short as Ranger stepped closer, licking her face and even getting his tongue in her mouth briefly. More than a bit surprised at her dog's unusual behavior, Mary quickly stood up. There was no doubt in her mind it was due to her changing body, but with a yawn she decided that it was time for bed. As she changed for bed, she happened to notice that her pubic hair looked to be more like fur than hair now. A small grin grew on Mary's face as she eagerly looked forward to any changes that would happen overnight. Despite her excitement, it didn't take long for her to fall asleep.
When Mary finally awoke in the morning she immediately got out of bed and started to examine herself for anymore changes. One of the first things she noticed was that her second set of nipples were now on top a pair of small breasts and that a third set of nipples hard formed. Below that she saw that her pubic hair had completely been replaced by brown dog fur and that it had spread by a couple of inches. Feeling something odd at the end of her tail bone, she reached back and smiled when she found the start of a small tail, though it lacked any fur at the moment. Mary rather liked how the changes were progressing, but she wasn't sure how much more of the vial she wanted to drink today, if she drank any at all.