Inside Ben Affleck's 'Perfect' Low-Key 49th Birthday Celebration with Jennifer Lopez
Ben Affleck's birthday celebration was a quiet but close affair.
On the evening of his 49th birthday on Sunday, Affleck shared a "quiet celebration" alongside Jennifer Lopez and her 13-year-old twins, Max and Emme, a source close to Lopez tells PEOPLE in this week's issue.
"Jennifer had a cake for him. Ben is not one for big celebrations, so he thought it was perfect," says the source. "It was exactly what he wanted."
Before meeting with Affleck, Lopez and Emme were spotted at producer Jennifer Klein's home for her annual Day of Indulgence event where the singer and the teenager were spotted picking out jewelry for Violet and Seraphina.
"When she stopped by the Made by Mary jewelry station, she and Emme picked out several 'birth flower necklaces,' including two for Ben's daughters," a guest tells PEOPLE, noting that Lopez said she planned to gift them to Violet and Seraphina at Affleck's birthday gathering.
The couple, who recently vacationed in St. Tropez for Lopez's birthday, are getting serious as Lopez plots a move from Miami to Los Angeles, where Affleck is based. An insider previously told PEOPLE that Emme and Max are "onboard with starting fresh in Los Angeles."
"They are slowly getting to know Ben," the source added. "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."
Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.
Following their respective splits from Alex Rodriguez, 45, and Ana de Armas, 33, Lopez and Affleck rekindled their romance in late April. They originally began dating in July 2002 after meeting on the set of their movie Gigli. They got engaged that November before postponing their September 2003 wedding just days before the original date and ultimately called off their engagement in January 2004.
A source told PEOPLE in May that their relationship is different this time around. "Time has passed, and they are each in a different place with children," the insider said.
For more about Ben Affleck and Jennifer Lopez, pick up the latest issue of PEOPLE, on newsstands Friday.
- Julianne Hough Says The Activist Controversy Gave Her 'More of a Fire to Focus' on Doing Right
- Zooey Deschanel and Jonathan Scott Say Quarantine Helped Strengthen Their Bond: 'I'll Hold onto This One'
- WNBA Star Elena Delle Donne Reflects on the Joys of Living Her Truth 5 Years After Coming Out as Gay
- Food Network Star Anne Burrell Marries Stuart Claxton: 'We Feel So Much Love'