METAPHOR AHEAD! (You have been warned.)
Kids reach puberty and Ma and Pa Nature replace their blood with sex hormones. Things change.
Decades later Ma and Pa Nature slow or stop resupplying the hormones. Things change again.
Nearing sixty, I noticed I was slowing my pursuit of women. My brother and his long-time gf invited me to sup with them and some friends and I accepted. One of their friends, a reasonably attractive woman, later needed a ride to her home, which was in the direction I would go. They asked me to drive her. I agreed.and we left.
While on te way there came an opportunity. Saying I had become less interested, I declined.
Another twenty years have passed and I have developed boobs. ("A" cuppers, I'm told.)
What else awaits me (assuming I get there)?