Senior Sexy 2 - Senior Sexy, #2

Senior Sexy is a series of erotic short stories about older people who enjoy a healthy sex life. When a young man calls impending granny, Lorna, a MILF, she's flattered and so aroused that she has a wonderful session of love-making with hubby, Mike. They realise that compliments of that nature excite her and wonder how they can get more for her, but none of the possibilities seem suitable. They then consider soft-swinging, where two couples flirt and have foreplay with each other's spouses but don't go all the way.
Even that option seems unlikely when their friends, the Lairds, flee after a dinner party, but then they meet seasoned swingers, the Hendersons, and things start looking up.