Us Weekly reports that Kimmel hosted the party at his home in West Hollywood on Monday, where Theroux and his buddies reportedly kicked back and shared some drinks in a barn Kimmel built next to his house.
Kimmel has been close to the couple for some time. Aniston and Theroux were guests at Kimmel's 2013 wedding to Molly McNearney, and the year before the couples vacationed together in Cabo San Lucas.
After the ceremony, the newlyweds boarded a private jet in Van Nuys, California, and took off for their romantic honeymoon in Bora Bora.
For more on the couple's star-studded yet intimate ceremony, check out the video below.