Former Romanian spy chief Ion Pacepa, who defected in the late seventies, was tasked by the soviets with aiding Mideast terrorism, he knew Arafat quite well back in the day and in his '87 memoir mentions Arafat's swingin' lifestyle. He posts often on Dave Horowitz' FrontPageMag.com. I do not know the details, however.
I don't go in for cheap shots no matter who the target, but there does appear to be considerable evidence in this case. As circumstantial evidence, all the smoke and mirrors surrounding Arafat's demise is a total flashback to the celebrity AIDS deaths of the eighties.
What makes me suspicious is the news media's lack of interest in the actual cause of death. Reagan's Alzheimer's for example, was discussed throughout the days after his death; Elizabeth Edwards's health situation is a topic of discussion; yet Arafat suddenly becomes sick and dies and no one seems to be discussing this illness.