Factory 69 camaro seatbelt question?

[MadMaxx]

Okay, I bought a factory set of deluxe seat belts for my car. My car has the factory shoulder harness belts. How am I to use the shoulder and lap belt together? What did they do in 1969? Does anyone make a three point for a stock appearance? I am going for a stock interior look. How can you use the lap belt and the shoulder belt at the same time? Do I need two female end seat belts for the front seats???I have the black deluxe interior kit with an console. Any help would be GREAT!!