Siri, the busty, insatiable MILF, caught her son Chad Diamond in the act, stroking his stiff cock in her silky panties. Her eyes widened, but she couldn't help but feel a twinge of excitement. Chad, embarrassed but turned on, offers her the panties. Siri, unable to resist, takes them, feeling his hot cum through the damp fabric. She teases him, rubbing the panties on her heaving cleavage, before leading him to her bedroom for a taboo lesson he won't forget.