Well sounds like you have more than the normal size erection! Which is fantastic. However, I too am built like you and judging from another question today, we have company as to the way we are built. Girls don't care about your flaccid size and most don't care about your erect size, they are just interested in the time you take to "warm" them up before starting intercourse. Which gives the girl a very favorable chance to have an orgasm just like the pleasure you feel when you ejaculate.
So tell those guys: "It ain't the flaccid size, but the erect length and the motion of the ocean!"