IDK if I can link the site so just Google "Phoenix Marie Bridgette B pornstar fight", all I could find is a 2m40s videos of the "highlights", shows up as first result.
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So they were on the set of Brazzers Live 5: Ultimate Surrender (2013-ish, live stream orgy also featuring Trina Michaels, Shyla Stylez, and - in theory - Nikki Sexx). The idea was that they were having an orgy on a ring so they tried to include some fights, also the guys were putting bets on the winner. Bridgette said something like "Imma win, I'm platinum", probably referring to her platinum-blonde hair; Phoenix replied something along the lines of "I didn't graduate kindergarten but that's gold" (referring to BB's corset). BB referred to her side tattoo saying "jealousy's a bitch", PM replied something like "yes but it's misspelled".
At that point BB lost it and started talking shit to PM, then BB physically assaulted PM, who threw the other on the ground. You can tell they weren't acting because you can hear some male voice saying "whoa whoa whoa", and "calm down". BB walked away and they were thinking of replacing her but then she came back. They ignored each other for a while but then BB started teasing PM, things escalated quickly and PM spit at BB, BB spit back.
Then they continued to insult each other, one called the other a whore, BB said PM to go home taking care of her kid (BTW, PM's daughter died in 2019 aged 18), PM talked shit about BB at the camera, BB said that she would kill PM.
Point is, they
clearly were high on drugs. All of them were. Nikki Sexx didn't took part in the orgy because she was so fucked up they had to tell her to leave. BB wasn't acting, nor was PM. They're friends now, apparently (if social media are to be believed).