It could be a late 70's film.
A pretty long-haired(brown and straight) girl, Martine Grimaud style (just to have an idea), making hitch-hiking.
A truck stops , she gets in by behind where there were 2 or 3 men with very big moustaches, some are fat with huge cocks.
She gives blowjobs to all and it ends with a good facial.
It was a well-made scene with a nice girl(with european look i think/hope), but can't say if the film was american or european.
I got an anonymous VHS when I was a kid.
help...