Teen mother-to-be Jamie Lynn Spears celebrated the impending arrival of her first child with a baby shower in her hometown of Kentwood, Louisiana. Big sister Britney and mom Lynne were among 30 guests who enjoyed the catered festivities at the Spears' Serenity mansion.

Britney, who hasn't been home since early last year, jetted from Los Angeles to Louisiana to show support for her 17-year-old sister, who is due in June. "Jamie Lynn opened every gift," a shower source tells People magazine. "We all sat in a circle and she opened gifts and thanked every person. It was just a good old-fashioned baby shower."

Fiancé/baby daddy Casey Aldridge was absent from the girls only event, but his mother teamed up with the Spears family to lend a hand. "It was a normal shower," says the source, "a wonderful, sweet occasion."