Former Friends star Jennifer Aniston is engaged to marry her actor and screenwriter boyfriend Justin Theroux,People magazine reported late Sunday. Justin Theroux had an amazing birthday on Friday,receiving an extraordinary gift when his girlfriend Jennifer Aniston accepted his proposal of marriage, Therouxs representative said. Anistons publicist Steven Huvane confirmed the engagement. Aniston,43,and Theroux,41,have been dating for more than a year and appeared in the comedy Wanderlust in February. No wedding date has yet been announced. The marriage will be the second for Aniston,one of Hollywoods favourite actresses and a frequent face in romantic comedies. Her first marriage with Brad Pitt ended in divorce after five years in 2005,when Pitt fell in love with actress Angelina Jolie,and Anistons love life has been followed assiduously ever since by the world media. Anistons previous boyfriends include singer John Mayer and actor Vince Vaughn. The news came the same weekend that Pitt was rumoured to finally be tying the knot with Jolie at their French castle. Theroux has established himself in Hollywood on several fronts. According to the entertainment website IMDb.com,he was a screenwriter for the films Tropic Thunder,Iron Man 2 and Rock of Ages and has been in a number of films and TV series since the mid-1990s. These include American Psycho,Mulholland Drive,Zoolander and,most recently,Wanderlust.