Britney Spears had two boys of her own when her 16-year-old sister Jamie Lynn announced that she was pregnant with her daughter, Maddie Briann Aldridge (pictured in a Twitpic with her mom on April 2). Jamie Lynn told OK! that she wanted her child, now 3, to "have a normal family life," which would include lots of bonding with her aunt. Brit, 10 years older than her sister, gave Jamie Lynn some mothering advice. "I notice that if there are some times I've been stressed ... that affects your kids. So you have to make sure you're a happy mom so they can be happy," she told Glamour.