There are a lot of videos labeled with some variety of "slut loves cock". The problem is there must be millions of these videos and they all have substantially the same content - two people engaging in sex.
Producers have to have some way of making their product grab your attention, and "two people fucking" isn't going to do it.
Producers have to have some way of making their product grab your attention, and "two people fucking" isn't going to do it.