What's Brown and Comes in Quarts?

Me. It takes forever for me to cum and when I finally do, tidal wave. My civie gf loves it, she never lets a drop go to waste. I think her g spot is way in the back of her throat. I've never been a minuteman, but an hour or more before I actually unload. Is this common? One of my friends says wearing boxers causes loss of sensitivity and prolongs the process.