Jennifer Aniston has been having a busy week on the NYC set of the upcoming Squirrels to the Nuts, a project also staring Owen Wilson, Kathryn Hahn, and Will Forte. Today she emerged in a short and sexy purple miniskirt and tank top — a valiant effort in staving off the NYC heat — and with two pairs of aviators for good measure. Jennifer was spotted with a fresh new look while filming on Wednesday, and on Thursday, she filmed with an adorable and furry costar. Jennifer got back to work after a brief weekend of fun — she spent time with fiancé Justin Theroux before he began work on his new film, The Leftovers, and even made time to attend Jimmy Kimmel's wedding over the weekend. Click through the gallery to see Jennifer's set pictures from today.