Gwyneth Paltrow was seen kissing Jennifer Lawrence's ex-boyfriend Chris Martin as they spent brunch together for her birthday celebration.

The 43-year-old "Ironman" star was spotted bonding with her ex-husband for her birthday at Prune restaurant. They were joined by their two kids, 11-year-old Apple and 9-year-old Moses, and Gwyneth Paltrow's mother Blythe Danner.

Gwyneth Paltrow was even photographed giving Jennifer Lawrence's ex-boyfriend Chris Martin a kiss on the cheek, proving that they have remained friends even after their divorce.

"Gwyneth and Chris seemed just fine, a little flirty and stayed close to one another," n insider from Entertainment Tonight said. "Blythe and Chris still appear close, still acting as a family together."

Gwyneth Paltrow and Coldplay frontman Chris Martin had coined the term "consciously uncoupling" last March, following their separation after over a decade of marriage.

After their divorce last year, Chris Martin began dating "The Silver Linings Playbook" actress Jennifer Lawrence. However, reports said that the two have already called it quits after an on-and-off relationship.

Meanwhile, in an interview with the award-winning actress, Gwyneth Paltrow said that she and Chris Martin remain partners for their kids.

"It's been hard, and we've gone through really difficult times, but we've always said these children are our priority," Gwyneth Paltrow said at the #BlogHer15 conference in New York. "What that really means is even though today you hate me and you never want to see me again, we're going to brunch because it's Sunday and that's what we're going to do."

Gwyneth Paltrow also took her two kids to Boston for Coldplay and Ed Sheeran's concert in Gillette Stadium, People said.

The actress even shared a photo on Instagram showing her two adorable kids gazing at the stage where their daddy is performing.

"Baby daddy in a sweet duet with the immensely talented #edsheeran #yellow." she said.