Season six is the fourth season, overall, to have two "bad girls" who were from the same city and state. The last seasons to do so was season one, season two, "Bad Boys Club" only seven "bad boys" enter the mansion on the first episode. During the show replacements enter the house after an original "bad boys" leaves, usually only one replacement enters the show, however, season one, Bad Boys Club L.A and Two season has had one replacements, which is the highest number of replacements to date in the series.
In every season of the Bad Boys Club one or more boys will be asked to leave the house either to violence or physical fighting which then gives the producers a chance at a new "bad girl" which arrives to the house in a day or two to replace the fellow bad girl.(This statement may lack specific facts and thus be unverifiable.)