Niggas are stupid. I'm not putting shit up my ass just cus you cute. I'm not about to twerk my ass just cus you cute. Cute motherfckers are a dime a dozen and I'd rather save my money.
In the world of gay porn, it is safe to say that it is a business. However, since the first days of the Internet, the amount of money someone is being paid to do porn (in general) is sooo low to non-existent. With that, the Gay for Pay bs gets all kinds of side eyes. And for any man that is actually straight that has, is, or will do gay porn, they are assholes to walk away from a set going into their personal life acting as if nothing happened. Straight men aren't lining up like people trying to get into a homeless shelter or the line at the club to do gay porn, not even to just get their dick sucked. The porn side of the adult entertainment industry ain't throwing dollars out like that at all. People who are managing the many different porn websites are helping us enjoy free porn at our disposal.
The physical act of sex can't affirm someone's sexual orientation. You can fuck anything or anyone, regardless of gender (even a Transgender person, pre-op or post-op), but the act itself is an activity. Your sexual orientation is affirmed by your sexual attraction to either or both genders. When it comes to bisexuality, that's where sexual fluidity comes into play, because even on the Kinsey Scale, bisexuality is a libra scale for some people.
Bottom line is, don't invest in determining who is gay, straight or bisexual when watching porn. Just take out your lotion and get your life.