Cousin Betty (1972). Cousin Betty arrives, and we soon see that there's plenty of hot bod under her demure granny outfit. After Betty soaps her snatch in the shower, Carol comes in to wash her back and her front and her boobs and her twat and Carol's hubby gets sloppy seconds from Betty as Mike, home from work is entertained by Carol and Marie. Betty joins these three and shows them what she's learned from taking care of all her cousins back in Montana "real good".