With my unremarkable girth, I'm both a bit of a shower and a grower, especially when I'm totally soft. I actually like the feeling of my long floppy dick and big smooth balls when I'm not turned on. Sometimes I'll just tug at it and hold my big nuts in my hand because I like the feeling of it in it's non-aroused state. I appreciate all that soft and squishy goodness between my legs.
Then as I get hard, I love the feeling of my dick doubling in length and girth. The expansion as it fills with blood as it becomes much longer, but still soft, is a bit surprising given how much more volume I suddenly have overall (too bad it can't always stay this big when I'm flaccid).
Then when it's completely erect, it transforms from being this floppy, warm, nonsexual plaything, to this extra long, rock hard, throbbing steel pipe, coursing with so much blood that it's now very hot to the touch. Between the thick swollen veins, much larger head that constantly drips precum, and the dramatic size difference in general, it goes from being just a "penis" or a "dick" that doesn't do much except hang there in my shorts, into a big fucking full-fledged "cock".