My Sister, My Roommate by Sumodeine

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You play for Taylor, the 18-year-old introvert. When he and his sister go to the same college, he is forced to share a room with his sister Nikki because of a mistake when entering the university.
Taylor is a virgin, and Nikki is a slob.
Can she help get Taylor out of the "hiding place" and help him with the other ladies? For the sake of Taylor's success, let's hope!