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She may play a horrible boss in her new, raunchy comedy, but things are anything but horrible for Jennifer Aniston these days.

Plugging Horrible Bosses on Good Morning America Monday morning, the 42-year-old actress opened up ever so slightly about her personal life of late.

"Yes, I'm very happy," a smiling Aniston said simply. "I'm extremely lucky, and I'm extremely happy."

One major source of that happiness is sure to be Justin Theroux, her new love. Since going public earlier this month, she and the actor-screenwriter, 39, have packed on the PDA in both L.A. and NYC.

Theroux was sitting in the front row for Aniston's Inside the Actors' Studio taping on Thursday, and she stole glances and smiles with her new man throughout the chat. She remained tight-lipped about their romance together -- he recently moved into her L.A. home, and they were spotted wearing matching jewelry in NYC -- but mentioned him as one of the actors she "loved" working with.