Naughty schoolgirl takes a dangerous thrill touching herself out in the open

I very gently turned the door knob and slightly pushed the door open, being extremely careful to not make the slightest noise. My sister and I only being a year apart in age, were inevitably close in our relationship. Vxxx I wanted to melt into nothingness at the thought that I had just been busted by my sister. Did she really just say what I though she said?! “There!” I said, tossing my pencil down on my desk. My sister and I usually get home at different times because she has cheerleading practice right after school. I sat up groggily and rubbed my eyes, then looked at the clock and realized what time it was.