In a moment of forgetfulness, the petite coed stumbles upon her brother's secret. He's sprawled on his bed, cock in hand, lost in a taboo fantasy. She freezes, then, with a wicked glint in her eye, decides to join in. She climbs onto the bed, her small frame straddling his legs, and leans down to take him into her warm, willing mouth. He groans, guiding her head, as she eagerly sucks, her eyes locked onto his, their family bond now forever tainted by their shared perversion.