Pro skateboarder and MTV star Rob Dyrdek has been ordained and RadarOnline.com has exclusively learned he’ll be officiating his sister, Denise Dyrdek’s wedding in December.

“Rob got legally ordained so he can officiate his sister Denise’s wedding,” an insider revealed to RadarOnline.com.

“Apparently the wedding is going to be at Rob’s Fantasy Factory in Los Angeles and it’s getting turned into a winter wonderland for the nuptials and reception.”