Despite my parents being home, my older sister creates a situation where it's just the two of us, pretending to be checking up on my studies. Is she trying to arouse me, or is she just frustrated? She starts whispering suggestive phrases in my ear, revealing a side of her that I never would have imagined. She seems to enjoy my reactions as she takes control of my body, gradually escalating her actions until I'm driven to multiple orgasms! Thanks to her, my grades aren't improving, and I feel like my brain is being sucked out every day by this sudden, exclusive tutor she's become!