I've got the OEM belts in my '70 Bee. Bench seats had two separate belts (driver side 2,passenger side 2) with female end for the lap and shoulders. Male ends at the roof and retractable at the hip.
Sounds like what you have is what I have now as well. So the 69's were opposite. Female end at the roof that attach to the center of the lap belt to a male end were the 70's had actual separate belts for the lap and shoulder. 2 female belts on each side. Do you have belts for a 3rd person up front also in the middle? Mine has that. I've got belts sticking out everywhere it seems.