Quote Originally Posted by cleetusvandamme View Post
The bigger the dick the more blood needed to make it really hard, it's all a matter of hydraulics. You see some of those guys with huge dicks in porn don't get fully rock hard.
Actually... They take a lot of drugs to stay hard. I remember reading a post saying how a male porn star messed up his penis because of too much drugs/penis injections to stay erect. Many even suffer from ED.

If you want to increase blood flow to the penis you need to exercise regularly, to improve artery health.