Brody Jenner, you’ve got some ‘splaining to do.

The reality star is going to have to answer to his stepsister, Kim Kardashian, after attending the wedding of her serious ex-boyfriend, NFL star Reggie Bush.

Bush married Lilit Avagyan in San Diego over the weekend, and Jenner attended with his girlfriend, Kaitlynn Carter, according to TMZ.

The “Keeping Up with the Kardashians” star posted an Instagram photo of them with the bride and groom.

Adding insult to injury, he actually skipped Kim’s nuptials to Kanye West in Europe earlier this year, citing a prior obligation in Chicago.

This lends credence to the rumors that he felt snubbed by Kim’s decision not to invite his girlfriend to her nuptials.

Bush and Avagyan welcomed a daughter named Briseis last May, “Us Weekly” reports. The athlete split from Kardashian for the last time in March 2010.

Do you think Brody was trying to hurt Kim? Tell us your thoughts on the situation in the comments!

NEW ORLEANS - JANUARY 18: New Orleans Saints player Reggie Bush sits with Kim Kardashian on the court during the game between the San Antonio Spurs and the New Orleans Hornets at New Orleans Arena on January 18, 2010 in New Orleans, Louisiana. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this Photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Chris Graythen/Getty Images)

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