ABC/Randy HolmesAfter causing fans to believe she was pregnant with an Instagram post last week Keyshia Cole …

ABC/Randy HolmesAfter causing fans to believe she was pregnant with an Instagram post last week Keyshia Cole …
Lester Cohen/Getty Images via ABCFat shamers beware: don’t mess with “bad gal RiRi”…otherwise known as Rihanna.&n…