[HOMA-093] Tutoring Her Sister (The Demure J○), But She's an Insatiable Bitch—Silent Reverse NTR Where I Secretly Fucked Her While Sneaking Around Yui Nagase

I was asked to tutor her sister, and since I proudly got into a national university with ease, I happily accepted the request. I thought she was a demure and serious girl, but I fell into this cute little bitch's outrageous trap! She suddenly started sucking my cock—how could I look away?! I was completely overpowered in an instant, and both sisters thoroughly enjoyed taking their fill of me. Special feature.