Brenna Parsons Westover and Jeffrey Westover of Reading announce the birth of twins, Maya Vivian Westover, born August 14, and Tyler Charles Westover, born August 15 at Newton-Wellesley Hospital in Newton. Maya weighed 5 pounds, 9 ounces at birth and was 18.75 inches long. Tyler weighed 5 pounds, 12 ounces and was 19.25 inches long. They join big brother Lucas and big sister Ava at home. They are also welcomed by proud grandparents Gerald and Coleen Westover, formerly of Katama, and David and Donna Parsons of Wolfeboro, N.H., and great-grandparents Ruth Metell of Oak Bluffs and Evelyn George of Dover, N.H.