Billy and Julia are getting close to marriage, but each have a single parent who's loneliness is tarnishing their peace. When they choose to set up Billy's father with Julia's mother, they couldn't forecast the older couple would beat them to the altar. But the real dilemma arises when Billy can't stop thinking about Julia's gorgeous mother, Theresa. Will Theresa settle for quiet companionship, or will she succumb to lust for the vibrant 18 man. The Stepmother Vol. 08 continues Sweet Sinner's daring look into prohibited passion. Directed by James Avalon.