Shot on film in the searing eighties: The Golden Age of Gay Films...when men were men and sex lasted all night long!
A door-to-door salesman (played by Brian Granger) selling "marital aids" demonstrates their main product, Forever Hard. He demostrates on the guys cock after applying the balm, to show how rigid his cock can become. In another scene where one of two lovers just can't seem to cum, and the salesman has them make love in front of him so he can analyze the problem. As they are plucking away, he takes out a bottle-rocket like aparatus, sticks it up the guy's ass, and of course, they cum like mad!