Britney Spears reportedly did not want her younger sister’s fiancé Casey Aldridge at her sons’ birthday party that she banned him from showing up to the family do.

Those closest to the Spears family were there to celebrate Sean and Jayden’s birthdays – including sis Jamie Lynn, who flew in from Louisiana with new arrival Maddie.

“Britney had really been looking forward to Jamie Lynn coming with Maddie, but definitely did not want Casey there,” a friend tells In Touch.

Britney has never been a Casey fan, according to insiders, and claims that Jamie’s beau cheated on the Zoey 101 star when she was pregnant haven't brought them any closer.

“Britney just does not like him and everyone knows that. She thinks that Casey is using Jamie Lynn for her money,” adds the source.

Meanwhile Jamie Lynn - who is trying to make it work with her baby's daddy - is said to have enjoyed spending time with her big sister in Beverly Hills.

“It was a good time for her to get away from him and spend time with her family around her,” a friend says.

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