HUNTC465 — Our Secret Oral-Sex Diary: My Obedient Adult Sister Keeps Sucking Me Behind Our Parents’ Backs Until We Cross the Line

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In this adult sibling role-play, a brother has conditioned his obedient sister since childhood to believe oral sex is normal between siblings, secretly making her suck him and recording his feedback in a diary. Her skills improve daily until she begins approaching him on her own whenever their parents cannot see. The danger of being caught heightens their excitement, and they eventually cross the line into incestuous sex that neither can stop, while he alone understands the deception and feels some guilt.