Ben Stiller: Jen Aniston, Justin Theroux Are “Really Happy Together”

 Gilbert Carrasquillo/FilmMagic; Eric Charbonneau/WireImage

They've spent time together in Hawaii and New York City, so it's no surprise that Ben Stiller and Christine Taylor have high hopes for Jennifer Aniston and Justin Theroux.

"They seem to be really happy together," Stiller, 45, told Us Weekly at the Tower Heist premiere in NYC Monday. "They're both great people. I love them both."

Echoed Taylor, 40: "They're both just very cool, terrific people."

Though Theroux, 40, has been shacking up at Aniston's recently renovated NYC penthouse, their future together remains uncertain.

"I am not planning to get married any time soon," Aniston recently told Britain's Hello! magazine. "This ring that I'm wearing is not an engagement ring."

"I've been married once and I don't know if I'll get married again," the 42-year-old actress added. "I can tell you that as of this very moment, as of today, I have no plan to get married."

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