Eduardo Cruz and Eva Longoria
03/09/2011 AT 12:40 PM EST
enjoyed a little afternoon make-out session with new beau Eduardo Cruz
Monday during a late lunch at the Chateau Marmont
. The two sat on the patio, where they sipped iced tea between smooches. "They were kissing for a long time," an onlooker tells PEOPLE. "They didn't care that other people were watching them. Eva looked very happy and in love."