Jennifer Aniston And Justin Theroux Trying for a Baby Just go with this: Jennifer Aniston and her beau of four months Justin Theroux are on the fast track to walk down the aisle....................... PHOTOS: Why Justin is just like Angelina: As Aniston, 42, and Theroux "who turns 40 on Wednesday" kick back on an extended getaway in a $7,000-a-day cliffside compound in Kauai, Hawaii, the hot twosome have more on their minds then coconuts, cocktails and outdoor yoga. "They have talked at length about getting married and starting a family," an insider close to the pair tells the new Us Weekly, out Wednesday. "She is anxious for the next phase of her life and feels like this is the time." PHOTOS: Her hottest bikini shots: And her hunky new guy "who split with girlfriend of 14 years Heidi Bivens in March" is completely on board with having a baby, a second insider says: "They both want it to happen soon." PHOTOS: Who else has she dated? To ...