yeah. I have a long commute and I've pretty much been working a desk job since I graduated college.
Honestly I don't remember if I had this when i was younger. It's one of those things. Body just kind of changes gradually and you don't notice until someone else brings it up.
I'm not self conscious of it or anything. current gf is ridiculous hot, and 10 years younger than me. I get her off every time, so my "anthill" or whatever it is might be giving me extra friction when I'm on top of her. lol go figure, maybe it's something good.