That’s disgusting. And not normal.
Does he not shower every day? Does he shower and not clean his junk? The opposite is usually true–a guy will spend 10 minutes washing his junk and 2 minutes on everything else.
If he’s uncircumcised, maybe he’s not cleaning under his foreskin well enough. Or maybe he has some kind of infection down there. It takes a lot of neglect to grow Frumunda cheese.
The problem is easily solved: tell him you’re not getting anywhere near his fetid phallus until he familiarizes himself with the hygienic properties of soap and puts them into practice daily. It’s not just an odor issue, but a health issue, too. Nobody with ripe junk should expect sex.
Now, if you’ll excuse me, I need to go vomit. And scrub my balls.