Mummy opened the door to her flat and I crawled in on my paws and knees. My cock was straining hard at the small chastity cage she had put me in and the slobber from my gagged mouth was dripping along the floor. Mummy motioned for me to move forward and, as I did so, she closed the door behind me and walked ahead once more. "Come on missy, let's have you in the living room where I can take a good look at you."
Once we were in the room, Mummy sat down and I crawled across in front of her and sat there on my haunches, paws up and obedient. Even though nothing like this had ever happened in my life before, I had fantasised about similar incidents so many times that fulfilling the role Mummy had assigned to me came naturally. Besides, Mummy had made it clear that she expected me to embrace the role and act accordingly.
"Now then my little slut, I seem to remember there were a few things you said you really enjoyed from our little chat when I caught you spying on Mummy!" As I looked at her, paws raised, I caught the trace of a mischievous smirk on her face. "I distinctly remember you saying you liked your bum to be full and the smell of ass! So, over the next day or so, we will explore those kinks in more detail. However, before then, Mummy wants you to take a big whiff of what I have in this bottle."
Mummy then produced a small brown bottle and unscrewed the cap. She grabbed my head and held the bottle under my nose. As the fumes from whatever was in the bottle hit me, I instantly felt drowsy and faint. The last thing I remember was hearing Mummy say "That's a good girl," before everything went black and I entered a dreamless sleep.
The next thing I can remember is hearing someone say "She's stirring!" I tried to move my body but felt so foggy I really did not know what was happening. A minute or so later, I heard the voice again - and this time I was certain it was Mummy. "Hello there Slut! Are you back in the world of the living now?" she said, laughing. "Now the fun can really begin!" I opened my eyes slowly and the first thing I saw was two leather boots with heels. I was coming round fast now and realised I was lying on my side. I moved to stand up and realised I couldn't. "Hahahaha, look at you all groggy. But don't worry, you'll be 100% back in the room in about 30 seconds. Now, sit up on your haunches like a good little pet and Mummy will explain what has been done to you." I did as I was told and as I did so, I noticed my legs were encased in a shiny, black suit that was skintight. My insides also felt full and bloated, like I needed to go to the toilet.