Nicollette & David's Romance Steams Up

Even though Nicollette Sheridan and David Spade have yet to verbally confirm that they're a couple, the pair let their body language do the talking on Friday night.

The Desperate Housewives star was celebrating her 45th birthday at new L.A. hot spot Luau in Beverly Hills — the same place they were spotted together a few weeks ago at the grand opening — and onlookers tell OK!, "Nicollette and David were full-on making out!"

The duo arrived separately and even started the dinner at separate booths but couldn't resist each other for long! According to witnesses, Spade winked at Sheridan and stood at her side while she blew out the candles on her cake. After that, the two retreated to a booth where they cuddled and kissed.

Nicollette, decked in a sequined gold frock, was joined by castmates Neal McDouough, Kyle MacLachlan and Felicity Huffman, who was joined by husband William H. Macy. The actress enjoyed sipping on lychee martinis all night, while her guests indulged on Luau signature dishes and cocktails like the Pupu Platter and Banana-Leaf wrapped Halibut and mai-tais and a specialty cake that read, "Happy Birthday Princessa."