"She goes all giggly whenever I try to talk to her about how to touch and excite me. She thinks it's cute but I find it insulting that not only wouldn't she have the first clue about how my penis works, she's got no interest in finding out." He's right – you do need to know some basic anatomy. While it's true that what worked with Barry won't necessarily work with Brian, most of us have the same hot spots.
Sex is a bit like typing. We can all sit down in front of a keyboard and bash something out using two fingers. But you're never going to be as good as the person who uses 10 and took the touch-typing course. Buy a good sex book and study it. Once you've got the basic biology figured, combine it with 'field research' – touching and testing the areas that are meant to feel good when stimulated – and you're bound to be a better lover than the girl who did the point-and-giggle-at-his-dangly-bits.