My girlfriend's little sister has grown too fond of me, and I can't help but find her adorable and incredibly attractive. While my girlfriend isn't looking, her little sister sneaks close, seductively pressing herself on me. Honestly, I'm thrilled to be desired by her—she's even cuter than my girlfriend—but I can't shake the question: why is this wrong? Right beside my sleeping girlfriend, I'm secretly begged to make babies, overwhelmed by shock and confusion at once. The little sister whispers, "With me, you can go raw," and so begins a life of relentless bareback sex. When the sister suggests I move in with my girlfriend, it seems like a sweet arrangement—but it's actually her cunning plan. Forced into raw, unprotected sex again and again, I grow anxious, wondering if we'll end up making a baby. The story plunges deeper into forbidden desire and secret passion.