Nicollette Sheridan went out to celebrate her birthday with colleagues and ended up smooching in a booth with David Spade, Us reports. Sheridan arrived at a Beverly Hills restaurant Friday with Desperate Housewives co-stars Felicity Huffman, Neal McDonough, and Kyle MacLachlan to celebrate her 45th. Then Spade winked at her from his booth. The two "couldn't resist each other for long," a source says. (More David Spade stories.)