I can barely see my own penis and therefore I disagree with this study. I find it too difficult looking at my penis because I have to raise up this layer of stomach fat to see it and then when I do, it looks like an "outy" belly button.
Actually, I am waiting for the day when a female shows up with her boyfriend and sees me naked says "wow, you have a beautiful cock" and then turning to her boyfriend asks "doesn't he?"