Hahaaaa - OMG, that's hilarious.
Okay, I'll play. While I don't think this adds to the original intent of GG's original post, it does follow up on the humor and tenderness we can seek in a relationship as we age...
Another couple, in their 70's as well as chance would have it, are making love in their marriage bed of 50+ years. The wife says to her husband, "Dear, my heart is beginning to flutter!"
"That means I still have it!", replies her husband.
"Yes you do, dear, but I mean for real! Let's finish up then go to see my doctor."
Fast forward a few hours to their local hospital. The wife has just completed a thorough examination as her husband waits eagerly for news in the waiting room.
Her doctor emerges with a look of seriousness that startles the husband, and sits beside him. "Sir, I've examined your wife and she has acute angina."
Smiling now, the husband whispers back to the doctor's ear, "And her tits are still pretty good, too!"
*rim shot*