I've thought Cary Elwes was hot ever since his salad days in Another Country. There is a Low budget British film made a few years after, back in the eightees, called Mashenka. Pretty obscure by now I would think. Set in Russia, Elwes' character attempts to lose his virginity to his teenage love, Mashenka in a dimly lit public park. He is overcome by fear and embarrassment and nothing more than a fumbled initial penetration takes place. However, on the old VCR copy that I have, recorded from the telly, you can just about make out a fleeting and blurred glimpse of his hard cock just before it plunges beneath her raised skirts. Not too easy to make out, but I'd say average.
He does have the most beautiful face, though. In the Princess bride, he is to die for.