When naughty Kymberly Brix starts eating food set aside for a party hosted by her step-mother (played by Clare Fonda), she gets something she didn't expect and hadn't gotten in a long time - a long, sound spanking from her step-mother on her bare bottom. She kicks and protests that she's too old for a spanking, but her step-mom doesn't stop until Kymberly's bottom is bright red and she has learned a valuable lesson.