After accidentally walking in on his younger stepbrother masturbating, the older stepsister decides to fulfill his fantasy by joining him in an intensely degrading act. She kneels beside him and takes his throbbing member into her mouth, sucking and stroking it with relish. As he approaches climax, she urges him to cum in her mouth, which he does, filling her mouth with his thick, hot seed. Satiated for now, they share a twisted smile before returning to their daily routines: the stepsister, knowing she holds the power to control her little stepbrother's desires, and the stepbrother, consumed with lust for his older sibling.
