Sure some ppl are into it, but i bet for the majority this is kinda a turn off.
Especially sicne most ppl who pay for porn dont get laid ( or get laid very rarely ).
So they chose a site, chose a scene with a babe they like and they want to see her fucked by ONE man - becasue then they can jerk off to that scene and imagine they are the guy fucking her.
So such a customer who doesnt have sex in real life, doesnt want to see 2 or 3 dicks banging that chick...he dreams about having sex with that girl and he only wants to see 1 man in the scene.
Sure, there are also surfers with a regular sex life, so they are looking for more hardcore, or some fetish, but the most typical guy probably only wants to see 1 on 1 scene...
And the guy in that scene shouldnt have a too big dick too, so that the customer can identify even more with him....
What's your opinion about this ?
