If you have the 11/25 show recorded, feel free to check this out if you don't believe it. During the show, the Twins chose to use the Fast Forward. Their task involved both of them eating 5 pickled herring. At the moment both twins were taking their first bite, the twin on the right's hair was in a bun on top of her head, and the twin on the left had her hair in some weird unkempt hairdo that was DEFINITELY not a bun. Keep in mind, this can be seen as they are both taking their first bite of fish. About 2 or 3 minutes later, they are shown eating their last bites of fish, and the twin with the unkempt hair suddenly has a nice neat bun on the top of her head, exactly like her sisters.
Now, I really doubt that she stopped eating long enough to fix her hair that way, especially since she had fish oil all over her hands. That leaves two explanations: One, the makeup artist from The Amazing Race came over and did her hair for her, WHILE she was eating her fish (very doubtful), or two, there was some serious shenanigans going on. Like, the show stopped the contest for some reason, long enough for the twin to either fix her own hair or have someone fix it for her. And don't forget, this contest was TIMED, and the twins barely finished eating the fish in time, the show's creators or someone in charge would have had to stop the timer for some reason, and while they were taking this break the girl had her hair fixed.
I can't think of any other explanation, other than there was something seriously fishy going on here (pun intended). If you have it recorded, check it out, I backed it up and watched it several times. If the twins win the million dollars, I think the other people in the race have the right to call the show's producers out on this one. Hoya Guru out!