Two devout sisters, riddled with religious guilt, seek solace in their stepbrother's closeness. Their virtue wavers as they command him to stay still while they lick and suck his throbbing cocks. Unable to resist, they slide their tight, untouched vaginas along the hard shafts, losing themselves in a wild, forbidden sex. As they collapse, spent and ashamed, they pray for forgiveness for their taboo lust.