Even the boys I knew in high school already had messed up ideas about sex from porn, and that was 20 years ago.

I never got into visual porn, which made for confusing experiences dating guys who knew little else, in my teens and early 20s. Aside from the obvious confusion that brought to the bedroom about what we were expecting, it was surprising how many guys had perfectly wonderful bodies yet thought they were inadequate. One guy had a 8.5" (47cm) long dick and still thought it wasn’t big enough. I told him, “Dude, you repeatedly stab my cervix. Trust me, you’re big enough.”

It seems that dick insecurity is really common, and that no penis-haver is immune, no matter the size nor what partners tell them.