How easily do you start to leak precum?

One of its functions is as a mark of arousal. It makes sense that reading or seeing arousing things would lead to pumping out more - and that those attracted to men would likely find it hot. In person, if your man is leaking more, it usually means you're doing something right.
I wonder if there is an evolutionary basis for the sexual excitement the sight of precum causes. Meaning does it serve a visual purpose? Like “You can see I am sexually aroused (in addition to seeing my erection) so I am a potential sexual encounter.”
 
I wonder if there is an evolutionary basis for the sexual excitement the sight of precum causes. Meaning does it serve a visual purpose? Like “You can see I am sexually aroused (in addition to seeing my erection) so I am a potential sexual encounter.”
It's a man getting wet. My best guess, same as the distaff counterpart.
 
Can you tell us about some of those experiences? Are sex partners amazed when you pull down your underwear and so much precum is coming out? What about times when you soaked through your pants? This is making me pretty horny.
Just saw this… sorry about that. Most often my experiences come from the embarrassing side. I used to do track and swim recreationally in college and would always go through the suit. Some girls definitely love it that I made lube for them lol.