porn movies have always displayed average men with well endowed genitals, proof of this is when they ejaculate see the size of the hand and the grip.
it is always the selection of average sized men with exceptionally large genitals paired with short females with fake boobs to make up for the erotic pleasure when viewing .
camera angles if observed would reveal the same sexual performance of say three to six minutes played repeatedly with nice editing using multiple cameras.
observe how low angle camera shots are compensated with pov shots which are the same footage of film.
use of drugs and sex enhancers are also not ruled out.
porn is always unnatural and artificial.

Hi.. The are lot of advertisement on the web which promises to increase the size of the penis.. But medically all are not true.. It is unlikely the size would increase.. There are few medical drugs however that are used to increase the erection time and thus improve the sexual performance time... If it is the size you are worried of, do not worry.. A size of above 3.5 inches in a erected state is normal..

so you mean to say male enhancement pills, capsules and tablets do work?

viagra or clomid do work if statistics are considered.
other products doubtful.