Khloe Kardashian is officially Mrs. Lamar Odom, and older sister and fellow reality star Kim couldn't be happier for the pair, who married Sunday in Beverly Hills after dating for only a month.

"Tonight was one of the best nights of my life!" Kim, who wore a lavender gown to match the sash on her sister's bridal gown, tweeted about her sister's big day. "Khloe & Lamar's wedding was a night to remember! I love you both so much!"

In the hours before the wedding, Kim, who acted as one of her sister's maids of honors alongside pregnant sister Kourtney, tweeted, "All of the girls glamming up for the wedding together! What an exciting day!!!"

While Kim was there for the big day, stepbrother Brody Jenner had to fly out to New York to do press for new episodes of "The Hills," which premiere Tuesday at 10 p.m. on MTV. "I'm getting some good seats this year at the Lakers games, yes!" Jenner joked about welcoming Odom into the family. "No, I've met Lamar a couple of times, and he seems like a pretty incredible guy. So it came fast, to say the least, but I'm happy for them. She seems very happy, so good for them."

The guest list for the wedding included Ryan Seacrest, Chelsea Handler, Kelly Osbourne, Kobe and Vanessa Bryant, Alan Thicke, Joe Francis, Joel Silver, Lara Spencer, Brittny Gastineau, Adrienne Bailon and Lala Vasquez. Also in attendance were Lakers coach Phil Jackson, team general manager Mitch Kupchak and Odom's fellow pro ballers Ron Artest, Derek Fisher, Luke Walton and Sasha Vujacic.