Trasgredire - fake penises.

Way to ruin my childhood! The penises in the movie always looked odd but not until now did I realize that every single penis in that movie is a replica. Correction: every single erect penis is a replica. A quick Google search returned a review that talked about fake penis in the Marta/Leon Matteo (I think his name was Matteo) oral sex scene.
Beach sex scene with Mauro Lorenz:

And now for a shot of what his penis might look like when it's erect:

An unconvincing faux penis that looks something like those penis extension toys:

And Matteo's fake penis. He was probably like "erm, I was wondering could you make my fake penis a little bigger, say, 25 cm long...?" Although who knows! Perhaps they shared the same fake penis with Bernard and everybody else...!?

And something that might be Mauro Lorenz, source hasn't been found, yet.