Attempting to wake up my stepsister and engage in fisting with her extremely tight vagina

I was in my step sister's room, trying to wake her up. I knew she had a tight pussy and I was eager to explore it with my fingers. As I reached down and touched her, I could feel the warmth of her wetness through her panties. I slipped my fingers underneath and began to rub her clit, making her moan in pleasure. I then proceeded to insert my middle finger into her tight pussy. She moaned even louder, her body writhing in ecstasy as I pushed my finger deeper. I was determined to give her the best orgasm she's ever had. I continued to move my finger inside her, stretching her tight pussy to its limits. She was in heaven, begging me to give her more. I obliged, pushing my fist deeper and deeper, stretching her pussy to its fullest. It was a sight to behold, her tight pussy being fisted by me.