camera angle can do miracles with a guys size. also there was a series of big dick sex movies made in the 80s and 90s that actually use prostheses to make the cocks bigger. and despite what a couple porn industry snobs say, those prosthetic ends look purty real - till you consider that a guy with an 18 inch dick isn't very likely to keep an erection

Paco - good post, and you are one of the experts in this area.