Jamie Lynn Spears' little girl is too young to know she's all over Instagram, but she'll learn eventually. The 30-year-old Netflix actress and sister to pop princess Britney Spears is fresh from shouting out 3-year-old Ivey on her social media, posting for her 2.1 million followers and showing that life is, quite literally, going swimmingly for her youngest. Jamie Lynn, who was a teenager when she welcomed soon-to-be-teen Maddie, is also a mom to little munchkin Ivey. See her below.