Never trim here. Personal experience is low testosterone reduces body hair. Inversely high testosterone levels make more body hair along with good protein levels in diet.
I used to shave once a week because I found it hot. Used to shave my legs as well. Its actually quite cool to show off your muscles.
But I realised that a hairy man is really hot as well. So I'm trying the other side of the story. Hairy legs hairy ass and pubes.
@Seb94 You’ve got great full growth not only up top but all around your package - lucky guy. Let it grow out and as @Gj816 or @Big_a_20 suggest trim the ends only to keep the full undergrowth volume. You’ve got nice balls so show em off .... only shave I ever do is very front of sac so they show like a couple eggs nestled in a thicket of pubes