LATEST: Joe Simpson has slammed Jackass star Bam Margera for claiming he had sex with his daughter JESSICA, insisting he wants to "beat the crap" out of him. Margera appeared on the raunchy Howard Stern radio show on 19 September (06) and confirmed rumours he slept with Simpson when she was still married to Nick Lachey. The 27-year-old JACKASS NUMBER TWO star said on the night of 11 April 2005, then-married Simpson took him back to her parents' home in Los Angeles' Encino area. He says, "We were just drinking margaritas and stuff, and you know, from there..." Margera tells American publication Us Weekly he and Simpson were intimate "once" saying, "It was when her parents were away and Nick was away. It's not a secret." Simpson's father/manager is furious about Margera's comments saying, "As a father, I want to go beat the crap out of people who say things like this. "It really hurts to hear people say things like this about my daughter."