By Becky Steinberg

What would make Rachel Zoe, a high-powered celebrity stylist, more excited than hearing about the new line of Derek Lam handbags? Celebrating her nephew’s bar mitzvah, of course. The fashionista attended the coming of age ceremony this weekend, and excitedly Tweeted her followers: “One of the best days today..my nephew Luke’s bar-mitzvah. So proud to be his Aunt Rachel..he shut it down!”

Not only does Luke have one of the most stylish aunts (I wonder what she wore to the bar-mitzvah), but also one of the most generous. The next day, Zoe posted pictures of her and Luke bonding at the Pro Bowl tailgate. Luke taught her how to throw and catch a football—a milestone moment for Aunt Rachel.

Even while juggling a reality show on Bravo ("The Rachel Zoe Project"), trips to Paris and New York, and a business of her own, Zoe makes time for her nephew and niece. Super-auntie Rachel is more like it! Mazel Tov Luke and Rachel Zoe!

To get all of Rachel Zoe’s auntie updates, follow her on Twitter.

Photo: Twitpic, rzrachelzoe

Becky Steinberg is a senior at Boston University, where she will graduate with degrees in public relations and Spanish in May 2010.