Heiress Harris, 4, is loving being an aunt! The daughter of T.I., 40, and Tameka “Tiny” Harris, 45, shared a sweet tidbit about big sister Zonnique Pullins‘s new baby while baking with grandma Dianne Cottle (Tiny’s mom). “One time my niece was at the new house…and the other night my mom said that we should teach my niece how to make good cookies.