Actually, it was August of my junior year of high school, so I was 16. I have been Penis Enlargementing for over two years.
Sure my flaccid has grown but my erect volume has surpassed it by a long shot. It sucks when you're still in the "average" range for flaccid dicks, yet you're "huge" when erect. My girlfriend said that when she first saw my dick(I presented it flaccid when pulling down my pants, I don't bother to get turned on before I show off) she said she was expecting a lot more dick to be hanging. She's not bitchy or anything size-queenish like that, just she explained to me she played with a guy who was about 5 inches(estimated from her hand width of it) who was a shower and hung about the same soft as he was hard. Plus, he was 5'7" and was skinny, so, yeah. A 4.5" flaccid on a 5'7" guy looks a lot bigger than a muscular 6'3" guy.
Also, she played with a guy who was pretty long, probably around 7.5(not nearly as thick as I though), that was about 6.5 inches soft. So she thought erect size was pretty much the same as soft size, until she met me and I explained it all to her.
She still tells me often, when I'm naked, "that's weird how much it grows, it's like, humanly impossible." I always get a good laugh out of that.
So if you want shock value it's good being a grower, and I do admit I did like that reaction when she saw my erect dick in her hands, lol
I'd imagine not many dicks grow over 4" in length when they get hard.
My penis almost quadruples in size when going from totally soft to raging hard. 7.2 cubic inches when soft, 24.4 cubic inches when hard. Approximately.