Thursday, 5 June 2008

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Jamie Lynn Spears & fiancé getting ready for baby

Britney's pregnant sister is in nesting mode with Casey Aldridge in their new house

Jamie Lynn Spears and her fiancé Casey Aldridge plan to wed after the baby is born

Jamie Lynn Spears and her fiancé Casey Aldridge are in full-on nesting mode.

The parents-to-be, who recently purchased their first home together in Liberty, Miss., are preparing for the imminent birth of their child, sources tell PEOPLE.

"They're very happy," says a source. "They're a fun little couple."

To get settled in their new home, Spears, 17, and Aldridge, 19, recently had furniture – including an elaborately carved four-poster king-size canopy bed, a leather recliner, and a leather sofa – delivered to the house.

Spears's mom, Lynne, is helping her daughter decorate the nursery, with the color scheme of pink, brown, and "silver-green," says an insider.

Spears, who is due to give birth soon, has been keeping a low profile as she readies the new house for her baby. The five-acre Liberty property is already equipped with a barn and studio, which was formerly used as a hair salon.

One new neighbor, who has already offered to babysit, says, "They're just a sweet little old couple."

Spears and Aldridge, who got engaged in March, plan to wed after the baby is born.

By Ruth Laney