Seems unlikely, both of them are grandmas.
If you think sex among seniors is uncommon you’re fooling yourself.
https://nypost.com/2009/01/25/retire-to-the-bedroom/
That’s just one story. Here in my locality the old folks homes have a hard time keeping them from doing it in public.
“Seems unlikely, both of them are grandmas.”
Let’s see-—they might have been lesbos at 20 but not at 48? You must be very young if you think 48 is too old for sex, rage, jealousy, ....And of course, grandmas never love or have sex or get jealous....