Pregnant Jenna Dewan Shows Off Her Bare Baby Bump in a Sheet Mask

39 year old 'Step Up' actress Jenna Dewan showed off her burgeoning baby bump as she took to Instagram. The actress, who is pregnant with her second child, took out time for some pregnancy pampering and put on a hydrating sheet mask on her bump to minimize stretch marks. Clad in a black lace bra and black underwear, Jenna flashed her toned legs and also had on a medallion necklace for the selfie.