While Holly Madison and Kendra Wilkinson grew close during their time with former boyfriend and Playboy founder Hugh Hefner, their relationship fractured - and it's been broken ever since. Madison, Wilkinson and Bridget Marquardt starred on hit reality TV series The Girls Next Door, which focused on their lives as they lived in the infamous Playboy mansion while all dating Hefner at the same time.. The show was a massive hit and aired for six seasons, from 2005 to 2009.