Step right up, ladies and gentlemen, and feast your eyes on this beauty who is now, and forever, part of the Hot Twitter Girl of the Week club.  We welcome her with open arms, as I'm sure you will once you take a gander at this hottie.  Meet Jamie O'Brien.Jamie is a model, singer, writer, and, of course a Playboy model.  She loves animals and claims to be the "queen of one liners" as well.   She does have a great sense of humor judging by her Twitter feed, and you better believe she posts some mighty fine pictures on there as well.  She also has a Facebook page where she puts up even more smokin' hot pictures of herself.

Enjoy Hot Twitter Girl of the Week - Jamie O'Brien.

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