Casey Affleck praises new sister-in-law Jennifer Lopez after missing her and Ben Affleck's Georgia wedding

• Ben Affleck's brother Casey Affleck welcomed Jennifer Lopez to the family with an Instagram tribute.
• Lopez and Affleck legally wed in a small Las Vegas ceremony last month.

Despite missing their Georgia wedding over the weekend, Ben Affleck's brother Casey Affleck welcomed Jennifer Lopez to the family with an Instagram tribute referencing the couple's long journey to the altar.

"Good things are worth waiting for. Here is to twists and turns, new beginnings, and finding new reservoirs of old love," he wrote beneath a 20-year-old throwback picture of himself, his brother, and Lopez. In the 2002 photo, the trio is engrossed in conversation while walking down the street in Los Angeles. Casey joked about Lopez signing up to join the house of Affleck in the caption.

"Welcome to the family. Get ready for some real dysfunction! Kidding. I am kidding. Jen, you are a gem. We love you so much!!!," he continued. He emphasized his message with a red heart emoji.

Lopez, 53, and Affleck, 50, were legally wed in a private ceremony at A Little White Wedding Chapel in Las Vegas, Nevada in July. All of their children — Affleck's three kids with his ex-wife Jennifer Garner and Lopez's two kids with her ex-husband Marc Anthony — were witnesses to the wedding.

Lopez wrote in her "On the JLo" newsletter that it was the best night of their lives and precisely the type of intimate and low-key wedding that the couple wanted. She also revealed that it was the type of wedding that they dreamed of together many years prior. They headed to Paris for their honeymoon shortly after.

They celebrated their marriage a second time this weekend with a larger celebration and an itinerary full of events at Affleck's sprawling Georgia compound. However, Casey was not in attendance. According to People, the "Every Breath You Take" actor was unable to attend the couple's wedding festivities due to "parental obligations."

Casey has two children with his ex-wife, Summer Phoenix: Atticus, 14, and Indiana, 18.

The celebration included a full-fledged wedding ceremony, a star-studded reception, and an all-white dress code. The guest list included Affleck's longtime friend and collaborator Matt Damon, director Kevin Smith, and "Dora and the Lost City of Gold" actress Pia Miller.