Some will remember Phoebe’s weird songs and others will remember Joey’s lame pick up lines, but the guys who watched it when they were young will undoubtedly remember Rachel’s nipples.Due to their constant appearances throughout the series, we'd think that they'd have their own slot in the opening credits alongside the 6 other members of the group.While today, it might not be such a shock to see women's nipple, thanks to the no-bra movement that's becoming more and more popular, it was definitely not the norm back in the days. In fact, women were often body shamed for not wearing a bra. In fact, we might wonder—was Rachel Green a pioneer in the no-bra movement? The mystery solved?Given how visible they are made, it is pretty impossible to miss Rachel’s pointy nipples under her shirt. It was so obvious that you would think the character, played by Jennifer Aniston, never wore a bra.But a theory has recently surfaced that could dismiss all of the previous ones, and in our opinions it sounds rock solid...Check out the video above to find out more!