Nick and Vanessa Minnillo

Seems just yesterday that Nick Lachey was linked with Laguna Beach's Kristin Cavallari. So why was he getting hot and heavy with sexy young TV host Vanessa Minnillo in New York City on Monday? The two were in a flimsily curtained-off area at the W Union Square’s Underbar. “Nick’s a single guy,” is all a Lachey pal will tell us. A source says Lachey, 32, and Minnillo, 25, were doing an R-rated bump-and-grind. “I saw tongues on skin,” says the source. The next night, the pair dined with friends at Fiamma in SoHo then went on to hotel 60 Thompson. The couple got close when Minnillo recently shot a part in Lachey's upcoming video. Meanwhile, Cavallari can’t even get club love: She’s been rejected by her fave L.A. spots lately as cops crack down on underage revelers.

Source: People.com