I took exception to two of your statements, SomeGuy. I have seriously considered silicone injections for myself. Although I think I would tip over if my dick were any thicker, my balls are just extra large(okay, some would say huge), and I would not mind a slight increase there. I love having oversized balls, and would love even more to have some extra weight to bounce around. People might even stop staring at my dick if my balls were bigger. After consulting with several people who've "made the trip," meeting some who had the injections done, and checking with some medical doctors, I decided this is not something I want to do right now(but probably will do, sometime in the future).
Your first statement was just not specific enough. Very few people actually get so much silicone that they end up with 12" in penis girth. Many are quite content to stop after one or two sets of injections, with perhaps an added inch or two in circumference. For most people, this gives what they feel is an aesthetically pleasing result, and puts them into the "large, but still quite usable and natural-looking" category, as well as giving an extra boost of confidence in the gym, bed, and all the other situations that we like to discuss on here.
However, your statement that people who've had injections cannot get erect is just not accurate. It may feel somewhat different(hm...a nerf bat), but certainly it is possible to have "penetrative intercourse," as they say. The variation in the "after" pics is just as wide as the variation in the "before" pics.
Having these -permanent- injections is a highly personal decision with, possibly, medical consequences. Anyone considering this should definitely do a lot of research(it might even be fun!
, and not rely on second-hand information, or solely on one person's experience, whether positive or negative.
And underwear two sizes too big would fall off my tiny dancer's butt. I guess that's three statements. I probably sound harsh, but I strongly believe that people should not make this permanent decision without a lot of careful thought and research.