Secretly Playing Alone While Cat Master Is Out

Meow…… Cat Master went out today, the house is so quiet.
I originally wanted to be a good kitty and wait obediently for him to come back, but the more I thought about it, the wetter I got, my panties are all stuck now.

My tail lifted up by itself, and when my fingers touched inside, it made that shameful watery sound……
I didn't dare to turn on the lights, nor make too much noise, so I could only bite the pillow and bury my face in the blanket while secretly doing it.