Justin to keep mum on relationship with Aniston

Justin Theroux has said that he is happy to be with Jennifer Aniston, but other than that he will not divulge any more information about his relationship.

The two are pairing up onscreen for the new Judd Apatow movie 'Wanderlust', but it's their off-screen relationship that people are more interested in.

"I understand the curiosity, but other than saying I am happy, I am not going to indulge it," People Magazine quoted him as telling New York magazine.

"That's building your own torture device," he said.

For her part, Aniston, 42, recently described herself as feeling joyful and peaceful in the relationship.

The couple, who met on the 'Wanderlust' set and have been seeing each other since last May, moved in together about six months ago.