VIDEO : Blake Shelton Kisses Gwen Stefani and Grabs Her Booty

Gwen Stefani and Blake Shelton showed off some major PDA during a romantic date night full of kisses and even some booty-grabbing. E! News has obtained exclusive photos of the couple enjoying a double-date at Casa Vega Mexican restaurant in Studio City, Calif., on Tuesday night during which they simply couldn't keep their hands off each other. A source tells E!, "They were there with another couple and were waiting for valet for about five minutes."