Jennifer Aniston slipped on a slinky peach Calvin Klein dress for the cover of InStyle's March issue. She's promoting her new comedy, Wanderlust, which hits theaters later this month. Jennifer met her boyfriend, Justin Theroux, while working on the project, and the duo have been going strong from NY to LA ever since. Jennifer opened up to the publication about what she's looking for in a man, Justin's signature style, and her age. Here's more from Jennifer Aniston in InStyle:On her age: "You know what makes me feel old? When I see girls who are 20-something, or the new crop of actresses, and think, Aren't we kind of the same age? I don't feel my age. I feel young every day."On finding the right partner: "Having experienced everything you don't want in a partner over time, it starts to narrow down to what you actually do want. As I get older I realize what qualities are important in love and what suits me. And what I won't settle for."On dressing like Justin: "First of all, he has great style - it's very specific, and it has been his style forever. Has it influenced mine? No, but I know people say it has. 'Oh, look, you're dressing alike.' And I think, No I'm not. I've had this jacket for three years!" View Slideshow ›