i forgot strapons existed and i think that would enable a greater variety of double/triple/whatever penetration videos than gay porn currently does.
based on the strapon usage i've seen: i suspect people who use strapons derive more psychological pleasure than physical pleasure and if that would have an impact on the quality of the porn.
It can work however! There aren't strict guidelines for what sex is supposed to be like. There doesn't even need to be penetration involved and it can still be a good time.
The pic implies an FFFM foursome with the trio of women behind the couch topping/domming and the guy on the couch bottoming/subbing. I don't think it specifically implies penetration.