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At the very least, Brody Jenner attending the wedding of his stepsister Kim Kardashian's ex-boyfriend Reggie Bush could be considered awkward, especially since Jenner was a no-show at Kardashian's nuptials to Kanye West in May.

But Jenner, who attended the wedding Saturday with girlfriend Kaitlynn Carter, seemed completely at ease posing alongside the NFL star and his new bride Lilit Avagyan.

"Congrats @reggiebush !!! #bushwedding," Jenner captioned the Instagram photo.

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He posted two other shots with his girlfriend of nine months, including a series of photo booth images, in which he declared, "love this woman @kaitlynn_carter"

After Kardashian's wedding, a report circulated that Jenner skipped his stepsister's wedding because his girlfriend wasn't invited. Jenner disputed that report earlier this month.

"Realistically, I had work commitments and it was a long way away," Jenner said on his new Web series, the Brody Jenner and Dr. Mike Dow Podcast. "We talked about it! It was very simple: After I got the invite, I said, 'Unfortunately, I won't be able to attend but I wish you the best. I love you.' And she was fine with it. So if she's fine with it, why is everybody else not OK with it?"

Bush dated Kardashian off and on for three years before they split in March 2010. Bush and Avagyan, a professional dancer, have been together since 2011 and have a 14-month-old daughter, Briseis.