Jan and Jim are brother and sister. Their parents die in an auto accident. Then the nightmare begins.

The insurance company wants to stall, not pay. Their parents friends have sympathy, but no job for the orphans.  Social Security will just keep them alive until they turn 18-years-old.

Jim takes the GED and quits school for a sequence of low paid jobs. Jan also gets a low paid job.  However, even with both of the orphans working at low paid jobs, it's a struggle just to keep the bills paid. 

Jan then comes up with a plan to get them out of their financial difficulties. The plan involves a double date with Ava and Alvin, the daughter and son of the richest family in town. 

There's a problem involving a large, strong, very dangerous man who has seized control of the factory. The people who own the factory have a plan to maybe get rid of the man. 

The plan to get rid of the man involves charges of sexual abuse against the man who now controls the factory.  However, the charges need to be made by women who know what it feels like to have sex with a large, strong man. The charges will involve training.  The training leads to incest. 

If Jim and Jan are to get out of their financial trap, they have to train one another to fit in with the people who own the factory.  So, Jan and Jim then start a training program to qualify them to join the others.  The training program is also to train Jim to become intimate with Ava and Jan to become intimate with Alvin. 

While they train each other sexually, Jim develops a plan to deal with the man who controls the factory. 

As the training and Jim's plan continue, Jim becomes involved with Ava and Jan with Alvin. 

Jim proves to be more than just a large, strong oaf. Then the surprises start.