Most men harbor some degree of fungal dermatitis in or near the genitalia. Even more so with larger men. These fungal "rashes" have a characteristic smell and it's not pleasant.
It's not necessarily a matter of showering it's a matter of knowing what to look for and treating it if necessary. Most OTC antifungals like lotrimin or the generic thereof work just fine if used properly.
The problem is that the conditions that brought on the fungal dermatitis in the first place will usually prevail after treatment causing another fungal dermatitis to return.
It's all a matter of moisture. Any moisture from sweating or showering which isn't dried thoroughly and immediately essentially causes the overgrowth of fungal microorganisms.
These fungus which live all over our skin anyway live in balance and harmony with other microorganisms primarily bacterial organisms. Moisture which is left to dry on our skin favor the overgrowth specifically of fungal organisms thus creating a foul smell which may or may not take the form of a rash.
If you really want to know how u smell to women "down there" here's a test you can do yourself. Prior to your next shower or bath take your finger and rub it thoroughly in the fold between the base of the scrotum and the base of your thigh. Do the same to the underside of the base of your penis where it rests against the scrotum. Then smell your finger and you'll have an idea of how we smell to women.
I'm sure I'm gonna get a lot of shit about this one. Sorry guys but the truth hurts, .... or stinks in this case!