Brooke Haven

Porn star Brooke Haven -- star of "Assploitations 5" and "I Wanna Bang Your Mom" -- says she's hung out with TONS of athletes ... but there's ONE who parties harder than everyone else ... by far. Haven -- who also appeared in "World Poke Her Tour" -- says the rager is an NFL star who still plays…

Ex-MMA star War Machine took a stab at a porn career after he was kicked out of the UFC -- but was quickly blacklisted after beating up several porn people ... so says XXX star Brooke Haven. Haven tells TMZ Sports ... she invited Mr. Machine to her birthday party back in 2009 after they performed…