A prank on my sister's body, sleeping soundly

As a virgin, I spent my days feeling frustrated because I wanted to do something sexy with a girl. I wonder if I can't somehow suck on my breasts or lick my pussy...I reached the peak of my frustration, so I gently opened the door to my sister's room and ran my fingers down my sister's body in the darkness. How smooth and soft are women?! We will take great care to prevent the act from happening, and further escalate the act. "A little bit, just a little bit more," I told myself, before I knew it, I had put my hands on my sister's panties.