by goodyearman
... is of course a 3some with Barbara as Jan did not know about his adventures with Barbara ... :D
The grannies get their daughters involved in the story and maybe even the ADULT granddaughters.
Two interesting suggestions, neither quite right, but I may consider using the ideas for a (not from personal experience) story in the future. Thanks anyway
I suspect a threesome. Janice probably heard the commotion and suggested a joint venture. It revived a few memories from my younger days in the 60's and 70's.