Kendra Wilkinson wishes Hugh Hefner a happy 90th birthday with topless hot tub photos

On Thursday, WE tv shared a sneak-peak of the topless hot tub video Kendra Wilkinson created in honor of Hugh Hefner's 90th birthday last Saturday .Despite their 2008 split, the 30-year-old reality star has remained friends with the Playboy founder, with whom she appeared on six seasons of E!'s The Girls Next Door.  See more pics after the cut...