LATEST: Paris Hilton's best friend KIM KARDASHIAN is furious with former boyfriend Ray J for releasing a sex tape they made together - had him thrown out of a party she was hosting on Saturday night (10FEB07) in revenge. Kardashian was hosting a pre-Grammy Awards bash at the Hollywood Roosevelt Hotel in Los Angeles when Ray J showed up driving a brand-new $300,000 (GBP154,000) Lamborghini convertible. A source tells American publication Us Weekly Kardashian hid in a poolside cabana, saying, "She refused to come out until he left. She demanded security remove him, and they did." Ray J, who is now reportedly dating Whitney Houston, was thrown out in front of fellow guests which included PARIS and Nicky Hilton, Ashlee Simpson, Fall Out Boy frontman Pete Wentz and John Legend. The 26-year-old insists she had nothing to do with the release of the sex tape adding, "It's really hurtful to me and my family and, contrary to rumours, it's all happening against my will. I'm sure any woman can understand what it feels like to be betrayed like this. I'm exploring all my legal options."