Joe Jonas and Ashley Greene at Katsuya: Cocktails & Kisses!

Let there be no doubt: Joe Jonas and Ashley Greene are very much out of the dating closet.

The pair were first spotted together in August, but refrained from any hand-holding or public displays of affection at the time. Last Thursday night, however? Ashley and Joe dined at Katsuya, a well-known, paparazzi-laden sushi restaurant in Hollywood.

Katsuya? Ashley and Joe don't mind if they do-a! [Photo: Pacific Coast News]

Said a witness of their date to E! News: "If Ashley sat any closer to Joe, she would have been in his lap!"

An employee even passed along the couple's meal, yellowtail with jalapeno, while confirming that the 21-year old Jonas brother downed Kikusui sake. For dessert? Each other.

"They stayed behind after their dinner for some cocktails and kisses before sneaking out the side door," said a source.

Does this mean Joe and Ashley are on the verge of an engagement, as previously reported? No. But it does mean they are officially one of our favorite couples. Go Gonas!