A musketeer comes to an inn and declares 'I want to eat, drink and screw!'. He is promptly served by first one, then two waitresses.
You might expect a 'porn movie' from 1920 to be pretty weak sauce, that perhaps a naked breast would be more than enough titillation for the silent era.
You'd be wrong.
This is a hardcore girl girl boy scene with all the combinations and permutations, filmed in all the relevant close ups. There is some wit in the intertitles, describing the 'menu' in terms of clams and spears of asparagus (you get the idea) and for what it is, it does have some production values: someone actually bothered to provide period costumes, before they were taken off.