Jennifer Aniston `obsessed` with fiance Justin Theroux`s cousin

London: Jennifer Aniston is apparently obsessed with her fiance`s famous TV documentary-making cousin Louis Theroux.

Sources have revealed that the `F.R.I.E.N.D.S.` star, who is engaged to Justin Theroux , loves watching clips of Louis on the internet, the Daily Star reported.

The insiders stated that the 44-year-old actor has only met her fiance`s cousin a couple of times, but she was hanging on to his every word.

The sources also said that Aniston now tells Theroux that his cousin should make a speech at their wedding.

Theroux has even joked that he feels threatened by his fiancee`s obsession.