EXCLUSIVE: Doug Reinhardt’s Sister Casey Moving In For Reality TV Show

Doug Reinhardt is about to have a new blonde roommate, following his break-up from hotel heiress Paris Hilton, but this one is nowhere near so high maintenance!

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RadarOnline.com can exclusively report that Doug’s sister Casey is moving in with the hunky baseball player, and they will be documenting the whole experience for their new reality TV show.

A show insider tells RadarOnline.com, “"Doug’s production company is involved with the show about Casey graduating and moving into Doug’s home to save money. It follows Casey as she has to learn to live under big brother Doug's rules."

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Meantime, a source tells RadarOnline.com that since splitting with Hilton Doug has been free once again to enjoy hanging with his family, something Hilton actively discouraged. “When Doug was with Paris it was all about her, 24/7, and she would sulk if he wanted to do something simple like spend time with his own family – it was kinda crazy and irrational.

“Now Doug’s on his own he’s really enjoying spending time with his family again. Saturday he went to Casey’s graduation from Pepperdine University in Malibu. It was so sweet, he was sitting in the audience watching her and he was literally beaming with pride.

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“Afterwards the whole family, and some close friends, went out for a celebratory lunch at the Jonathan Club. It’s great to see Doug back to his old self again, and to see him free to be able to enjoy the company of his friends and family without the constant nagging he used to have to suffer through.”