PG-13 Movies are allowed a maximum of 1 non-sexualized use of the f-bomb per movie.

[Here's][1] an article referencing this rule.


As for why both f-words were bleeped out rather then the one required for the PG-13 rating, it would be strange stylistically to bleep out one f-word and leave another in the same scene unbleeped.

  [1]: http://www.dailymail.co.uk/news/article-2027523/The-F-word-PG-13-movies-Theyre-dropping-cluster.html