Britney Spears has reportedly ordered a six-foot tall elephant for pregnant sister Jamie Lynn's nursery. The troubled singer - who has two sons, 18-month-old Jayden James and Sean Preston, two, with ex-husband Kevin Federline - is splashing out more than $30,000 on her future niece or nephew.

A source close to the star said: "Petit Tresor is designing the nursery for Jamie Lynn's baby in Kentwood, Louisiana. It has an ocean theme, and is going to have organic bedding and baby blankets.

"Britney is picking up the tab. So far she's spent more than $30,000 on it - she's sparing no expense. She also ordered a custom made, six-foot tall elephant with a blue bow which she wants to sit in the middle of the nursery."

Jamie Lynn, 16, is expecting her first child with boyfriend Casey Aldridge, this summer. Friends of the actress recently revealed she is thinking about returning to college after giving birth.

A source close to the 'Zoey 101' star said: "She's already got her diploma. She wants to take her college entrance test. She's not wasting any time.

"People don't know her. When she gets something in her head, she'll make it happen. Everybody is so supportive of her, and will back her in whatever she chooses to do."