What goes around in Hollywood definitely comes around. And that's probably why 18-year-old reality television star Kylie Jenner is "freaking out" right now, as she is worried about her boyfriend's connection to HIV-positive actor Charlie Sheen.

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Sources say that the young socialite is none too happy over reports that her boyfriend was involved with a transgender porn star who was once linked to the scandalous television actor.

According to OK! Magazine on Wednesday, Tyga supposedly hooked up with transgender model Mia Isabella for a three-year period before his relationship with Kylie. Unfortunately, Mia Isabella was also involved with Charlie Sheen during that same time. The actor revealed last week that he is HIV positive while reports say that he supposedly contracted the virus some four years ago.

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This is, of course, giving Kylie every reason in the world to be concerned. A source close to the Kardashians dished, "As soon as Kylie's mom Kris Jenner found out about Tyga's connection to the same transgender woman that Charlie was involved with, she went ballistic."

The news might also be the reason why Kylie broke up with Tyga for at least 24 hours last weekend. Insiders say that her mother told her to "get to the bottom of this potentially life-threatening mess" before she does anything regrettable with her boyfriend Tyga.

Still, the rapper says that he was never connected in any way with the transgender model, despite the rumors and reports.

"Tyga insisted he never had anything to do with Mia," the source further explained. "Tyga flipped out and screamed at Kylie that she was crazy to believe that he'd been with Mia."

So far, neither Kylie nor Tyga have made any public comments about the allegations. Keep up with Enstars for all the latest news on the entire Kardashian family right here.