As reports of actor Charlie Sheen being HIV-positive continue to circulate, many are wondering if this means he passed the disease on to his ex-wives or ex-girlfriends. Actress and former porn star Bree Olson, who used to be one of Sheen's "goddesses," took to Twitter to announce she's been tested for the AIDS virus.

On Friday, Olson, 29, posted a note on Instagram saying there were rumors circulating that one of her ex-boyfriends has HIV. She said she's been tested for everything over the last few years and has "come back clean across the board every time."

Olson was romantically linked to Sheen in 2011. According to ABC News in July 2011, Olson was one of two girlfriends who lived in Sheen's Los Angeles mansion when they were dating four years ago. Olson was part of a love triangle with Sheen along with Natalie Kenly. Olson said things were often "tense" at the mansion due to Sheen being involved with both women.

"I don't know how to put it. It was like you could cut the air with a knife sometimes," Olson said. "I felt like I couldn't show Charlie the affection and the love that I wanted to show him, because of how she would react."

Us Weekly reported the actress became involved with Sheen when he invited her over to his place and the two hit it off. She moved into the mansion with him and Kenly shortly after. Olson later ended her relationship with Sheen in April 2011.

It's unclear if Olson was aware that Sheen was HIV-positive, but Access Hollywood is reporting that his ex-wife Denise Richards has known about him being infected for "a number of years." A source told Access Hollywood that Richards and their two children do not have the disease and that Sheen contracted it after their divorce in 2005.

Reports are that Sheen will publicly announce he's HIV-positive in a special segment with Matt Lauer Tuesday on NBC's "Today." There's been no announcement that the actor will confirm or deny the reports, but the topic is certain to come up.