Under the guise of a casual peck, the insatiable mother's lips part, her tongue darting out to taste her son's mouth. He's taken aback but responds, their tongues dancing, exploring. She guides his hand to her breast, encouraging him to squeeze and grope. He's hesitant at first, then eager, his cock hardening against her thigh. She grinds against him, her wetness soaking through her panties. "You like that, don't you?" she whispers, breaking the kiss. "You like Mommy's big tits." He nods, too turned on to speak. She smiles, pushing him back onto the couch, ready to give him what he really wants.