They're baaaaack. Seen being famous for doing nothing filming the new season of their E! "reality" show, Kourtney & Khloe Take Miami, Kourtney and Khloe Kardashian, having dinner at DeVito South Beach Friday night. We didn't realize they were back so soon and merely laughed when one of our sources told us they could swear they saw "those Kardashian Muppets" in Dash, the sisters' money laudering shell of an operation version of a lemonade stand Washington Avenue clothing store which never seems to have a soul in it until the camera crews arrive. Anyway, welcome back girls and enjoy the attention while it lasts because it's only a matter of time before Dash becomes a blip on the Jersey Shore South Beach radar.