PHOTOS: Reality star Alexis Sky caught rubbing her booty on married Usher

For Memorial Day weekend, Usher was on hosting duties at the Rehab Beach Club in Las Vegas where he thrilled party goers to the max dressed in an eye catching floral shirt. He was seen getting some of the fun for himself as he got up, close and personal with Love & Hip Hop star, Alexis Sky, who is rapper, Fetty Wap's former girlfriend. 

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