Forget frumpy maternity frocks, Rihanna is all about embracing her new pregnancy curves. In fact, her bare baby bump may be her best accessory right now. The singer has been turning heads with her daring fashion looks since announcing her pregnancy back in January. And the sexy MILF look is exactly what she’s going for, claims the singer RIHANNA BREAKS THE INTERNET WITH FASHION WEEK LOOKSOver the past few days Rihanna and her unborn baby have attended both Milan and Paris Fashion Weeks. Pics of the Diamonds hitmaker went viral over the weekend after she rocked up to a Dior show wearing a compl…