Whitney Houston, Ray J Split Over Kardashian Sex Tape

According to the Post-Chronicle, pop diva Whitney Houston recently split with boyfriend Ray J after Vivid released an online excerpt from his graphic sex tape with Kim Kardashian.

Citing Hollywood gossip columnist Janet Charlton as a source, the article states that Houston became "outraged" last week when Vivid released a 40-second trailer for Kim Kardashian Superstar. Ray J (a.k.a. Ray Norwood) and Kardashian made the sex tape three years ago while they were dating. Vivid plans to release the Kim/Ray footage on DVD Feb. 21.

Ray J, 26, had reportedly been dating the 43-year-old Houston for several months. The article states that Ray J "had been helping Houston work on her comeback album and was also offering her support in adapting to her new sober lifestyle."

Meanwhile, SFGate.com reports that Kardashian had Ray J thrown out of a pre-Grammy Awards party last Saturday night at the Hollywood Roosevelt Hotel. A rep for Ray J denied the report to website TMZ.com, claiming that the hip-hop star was simply "party-hopping" on the night in question.

Kardashian maintains that Vivid is releasing the video without her permission. "It's really hurtful to me and my family and, contrary to rumors, it's all happening against my will," she told reporters. "I'm sure any woman can understand what it feels like to be betrayed like this. I'm exploring all my legal options."