Jennifer Lopez joins Ben Affleck, Jennifer Garner at son's graduation

Jennifer Lopez and Ben Affleck seem to be making efforts to stay involved in each other's lives despite challenges in their marriage. Recently, Lopez joined Affleck and his ex-wife, Jennifer Garner, in celebrating a family milestone at Affleck's home in Brentwood, California.

According to PEOPLE magazine, Lopez and Garner were seen entering Affleck's home to attend a graduation party for Samuel, Affleck's 12-year-old son with Garner. Despite ongoing marital issues, both Affleck and Lopez were spotted wearing their wedding rings earlier that day as they participated in the family celebration.

Affleck shares three children with Garner: Samuel, Violet (18), and Seraphina (15). Meanwhile, Lopez is a mother to twins Max and Emme (16), whom she shares with her ex-husband, Marc Anthony.

This isn't the first time Affleck and Lopez have attended a family event together amidst their relationship challenges. Earlier this month, they were seen together at Samuel's basketball game, prompting speculation about the state of their relationship. A source shared with the outlet that their joint attendance at the game was perceived as a positive sign.