Sister at church, stepsister indulges in self pleasure with a toy

Watching as the younger one goes to church and leaves her older, sex starved step sister to run her fingers through the hair of her genitals as she masturbates, we follow their parallel lives. Catch her whipping a dildo, until finally, she climaxes so hard her right elbow heaves her head into mid-air, leaving her to catch her breath,/orgasm.