The changes to your face are subtle enough so that you don't notice that your mouth and nose have joined together and pushed out an inch.
As soon as you look up at Jack, you try to speak again but still only produce the same gargling sounds as before, this time though they are deeper and easier to produce.
You see that he is still holding your boxers which you forgot he removed during your eating. You lunge at them but Jack holds them back out of your reach grinning.
"You wanna play boy? Iv'e got a few minutes before I have to go to work."
You realize that if Jack has to work then you probably have to get ready for yours as well, but playing with master sounds too fun to pass up.
He Pushes open the back door and calls back to you, "Come on boy! And don't start jumping up again!" before walking out to the yard
You stand up to follow him but immediately feel uncomfortable. It isn't like your back and hips hurt exactly, they just feel strange and alien, like trying to write with your left hand. The feelings aren't all physical either, as you feel guilty about standing up when Jack told you to get down.
These feelings are two strong to even consider walking so you get back down to your hands and knees and follow Jack to the backyard.