Fact is you have a dick! You have respectable looking jeans on and if it shows what the hell. You don't have to apologize for being hung nor need to strap it to your leg.
Not like you are shopping in cutoffs with it hanging down or transparent nylon running shorts.
If a women with large melons is shopping in a sweat shirt people likely will notice but she isn't flaunting them. If she has a skimpy tank top and you see her nipples people may think she is pushing the limits.
It is kind of natural to see a bulge, some bigger than others.