Our Bad Girl RiRi may have skipped the Grammys, but she was in full #ValentinesVIBES mode this week promoting her brands Fenty Beauty and Savage x Fenty. Here, she wears Fenty Beauty's Stunna lip paint to dazzling effect: https://www.instagram.com/p/BtjOMmYBCs-/ And here she's posing in Savage x Fenty lingerie from the line's Valentine's Day collection, looking…