When I was younger, maybe even through my 40s, it was almost all the time. At around 50 I experienced a bunch of personal tragedies and coming out of that I find that I no longer have sex on the brain constantly.
I'm still probably cranked up compared to many guys my age because I was on sexual overdrive for so long. But for me, this deceleration seems a huge slow down. I like it. I feel I was too distracted by sex for most of my life. Not that it wasn't fun. It was. But it made it tough to concentrate on other matters.
So I don't know if the change in my thinking is from age or traumatic experiences as the occurrences of all that coincided with each other. But I like it better this way. Not the age part, that sucks. And certainly not the tragedies, those totally sucked. But I like my thinking better now in this regard. My thinking seems more clear and I see others better now for who they are than for how they make me feel sexually.
When I hear about guys taking supplements like Viagra to be even more sexual than life has made them, I think they are fucking crazy. Sometimes it's nice to put sex to bed and give it a rest. I never thought I'd hear myself say that.