So long, Pete!

Ashlee Simpson and her new beau Vincent Piazza couldn't keep their hands off each other on Sunday in New York. 

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Simpson, 26, and the Boardwalk Empire actor shared a passionate smooch on the sidewalk. The couple also enjoyed brunch at La Bottega in The Maritime Hotel. "She was extremely touchy feely," an onlooker told Us Weekly

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The PDA-packed afternoon came on the heels of Piazza's recent visit to spend a few days with Simpson in L.A. earlier this month. "Vincent's a chill guy, very artsy, the quiet type," a pal told Us. "He likes her."

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In February, Simpson officially filed for divorce from her hubby of nearly three years, Pete Wentz. She and Wentz, 32, have tried to remain amicable for the sake of their 2-year-old son Bronx.

"Ashlee's been my best friend for five years. She's the mother of my child," Wentz said during Ryan Seacrest's KIIS-FM radio show in March. "I have nothing but love and respect for her."

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