Why you can't do it!
You dick is made up of fatty tissue and cartlidge. No muscles there to grow. Blood fills the dick to make it hard. If you had a muscle for a dick then all you would have to do is work it out like the rest of your body. If you do inject it, then it will just be absorbed into your body and you would have one hell of a sore dick and most likely swollen for about a week. AND NO I NEVER HAVE INJECTED MY DICK GUYS.....BEFORE YA'LL START WITH THE COMMENTS.....hehe. When you go see a doctor because you want girth, then what they do is inject more fatty tissue into your dick. After awhile your body just reabsorbs the fats and it goes back to normal. There are also lengthening procedures, though they can be risky. AND NO I NEVER HAD ANY PROCEDURES DONE ON MY DICK.....SO STOP THE HUMOUR WHEELS NOW!...heh. By the time this post is posted you probably have already stuck your dick and now you know why it will not work from experience instead of common sense. Let us know the results, anything other than, "I should have not done it" will be a lie though.