POPSUGAR Celebrity Nate Lowman Photo of Mary-Kate Olsen, Her Boyfriend Nate Lowman, Christopher Bailey and Derek Blasberg Out in NYC Cocktails for Four by Celebrity 3/17/09 0 Shares Like us on Facebook Mary-Kate Olsen and her boyfriend Nate posed with their friends Christopher Bailey and Derek Blasberg on Monday night at a Burberry cocktail party in NYC. Sipa Read More Nate LowmanDerek BlasbergChristopher BaileyHotMary-Kate Olsen Mary-Kate Olsen 29 Times the Stars Went to a Basketball Game, but Their Outfits Suggested Otherwise The Very Best Celebrity Engagement Rings 13 Moments That Made Us Wish We Had a Stylish Sister by Our Side 5 Hilarious Celebrity Twinning Moments Derek Blasberg Insta Glam: The Week's Best Instagrams From Our Favorite Fashion Insiders Insta Glam: The Week's Best Instagrams From Our Favorite Fashion Insiders How New York's Fash Pack Is Riding Out Sandy's Aftermath in Style From Wonder Woman to Religious Relics: The Fashion Set's Best Costumes Get the scoop with our daily newsletter Young Hollywood A-Listers Movies TV Sign up with By signing up, I agree to the Terms and to receive emails from POPSUGAR. ckeller825 6 years she's freakin adorable. I love her. I wonder what brand those jeans are. iing 6 years she's fug ,,,looks like vampire,,and her mouth........ huh Bearsy123 6 years I like the casual jeans look however I still can't shake the fact that she looks like a wierd, neckless, hunchbacked hobbit emmar 6 years love burberry emmar 6 years love burberry ashln 6 years wow! she's wearing jeans...that's a new concept for her! minnie2011 6 years i like MK. minnie2011 6 years i like MK.