Jennifer Aniston is - and has always been - a consummate professional, but there was one particular line in Friends she *just* could not keep a straight face for. Blooper footage of Jen as Rachel Green is going viral right now, with Friends fans totally obsessed with Jennifer's struggle to keep her composure.
The moment happened in season two of the cult series, when Rachel, Monica and Phoebe all read a women's empowerment book titled Be Your Own Windkeeper. In the episode, Rachel becomes frustrated with Ross, who is her boyfriend at the time, and wants him to allow her to have her independence.
