@lololulu19
I understand your assessment, but I mostly disagree with you. In my case, I don't need a connection with the person to swallow cum. I just love it. What I do however require to swallowing cum is basic level of visual attraction to the guy.
As for straight porn, I would argue that gay porn is vanilla relative to straight porn, so the expectations from the girls are requiring them to be kinkier and be more willing to perform certain things, if that makes sense... I would also argue that straight guys love to watch a woman swallow cum.