Jennifer LopezandBen Affleckare continuing to spend time with each other’s children.

Affleck, meanwhile, donned a hoodie and jeans, and was seen with 9-year-old sonSamuelbeside him. He shares his son as well as daughtersSeraphina, 12, andViolet, 15, with ex-wifeJennifer Garner.

Last month, a sourcetold PEOPLEthat Affleck, 48, was getting to know Lopez’s twins and that they are “onboard with starting fresh in Los Angeles,” where he lives.

“They are slowly getting to know Ben,” the source said. “Everything seems to be running smoothly. It’s very obvious that Jennifer is serious about Ben. She hasn’t looked this happy for a long time.”

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Ben Affleck (L); Jennifer Lopez.Emma McIntyre/Getty (2)

Ben Affleck - Jennifer Lopez

Another insider recentlytold PEOPLEAffleck and Lopez, 51 were “very affectionate” with each other during a family dinner together with Max and Emme at Nobu in Malibu last month.

“Ben and her kids seemed comfortable together,” the source said. “Ben seemed great. He was smiling and laughing.”

Rumors that they had reignited their early aughts romance first spread in late April when they werespotted outside her L.A. homefollowing her split fromAlex Rodriguez.

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Since reuniting, the pair have spent time together in Los Angeles as well as in Miami, where Lopez has had her home base.

Last weekend, the pairenjoyed a date nightin Beverly Hills, a source told PEOPLE. “They were both in a great mood. Ben always looks very happy when he is with Jen,” the insider said.

Added a source close to Lopez, “she spends as much time with Ben as possible.”

source: people.com