Straight guys tasting their own cum? What is this world coming to?
It's certainly an egregious topic, and I'd lay wager its a territory most men have explored at one time or another.
It starts with it getting on your fingers.
A few weeks later you graduate to playing in it on your belly, doodling and touching it.
Next thing you know you're lifting it up to your nose--curious about what it smells like.
After a handful [pun intended!] of times doing that the temptation begins to creep in and eventually...
Heat of the moment/tip of the tongue.
It isn't exactly a topic for casual conversation over a beer. I mean, where could that lead? A friendly debate on the culinary attributes of swallowing a load?
_____It's a nice full bodied white cum. A good tone and opacity. Initially, I get a fragrant woodsy tang, but then it gives way to a sprightly stout metallic aftertaste. A very nice wad.
Generally speaking, tasting one's own fluids is a dark, dangerfully naughty subject matter.

But I imagine there's a lot of dudes out there that have a secret semen fetish when the bathroom door gets locked.
Hell--they be up in there looking in the mirror at it rolling around on their tongue, while their poor dick is laying down below spent and exhausted with its head in the sink, all tender and red.
___Like caviar--it's an acquired taste; certainly not something you'll want to put on your Cheerios, or let the girlfriend smell on your breath....
