With less than three months left before she becomes a mom, Jamie Lynn Spears is living it up — shopping, hanging out with her friends and behaving like any other normal teenage girl.

Even though the paparazzi have invaded her hometown of Kentwood, La., Jamie Lynn seems to have a better handle on them than her big sis, Britney Spears, did. “She has such a level head on her. She is handling this situation with a maturity that is surprising even her own family,” a friend of the Zoey 101 star says.

On March 9th, Jamie Lynn attended a local baseball game. A few days later she went on a coffee run with a girlfriend, and on March 13th, she hit up one of her favorite local shops, Connie’s Jewelry & Gifts, for a few trinkets. “She’s behaving like a pretty normal teen,” the friend says. “She’s not even worried about how much weight she puts on or doing any special exercises. At her age, her body will bounce right back and she knows it.”

As far as her relationship with her sister is concerned, the friend says that Britney and Jamie Lynn talk at least every couple of weeks, and are working to re-establish the closeness they once had.