Jessica Simpson made out with her new boyfriend during a dinner with her mother.

The singer-and-actress was enjoying a lunch with her mum Tina and friends at Mexican restaurant Dos Caminos in Manhattan, when she couldn't keep her hands off her new man Eric Johnson, and kept kissing him during the meal.

A fellow diner told UsMagazine.com: "He always had a hand on her back, was touching her hair and kissing her head. They made out a few times!"

Jessica and the NFL football player only started dating last month, but are already very comfortable together.

The source added: "She looked super happy. And he was very attentive to her. They looked like they've been dating for ages."

Although she has been romantically linked to Smashing Pumpkins singer Billy Corgan, Jessica hasn't been in a serious relationship since ex-boyfriend Tony Romo dumped her on her 29th birthday last year.

The 30-year-old blonde beauty was previously married to singer Nick Lachey and dated John Mayer for nine months.