Mariah Carey's Sister Was ARRESTED Yesterday . . . They Caught Her ALLEGEDLY Trying To Sell HER MOUTH And THROAT . . . For Just $20!!! (Wow . . . Times Must Be HARD)

MediaTakeOut.com learned that the sister of pop sensation Mariah Carey has been arrested on prostitution charges in Ulster County.

Authorities say that Alison Carey was arrested in a Saugerties hotel on Friday during a sting operation.

According to reports, the 55-year-old advertised her services on the internet, with services involving her mouth and throat going for as low as $20.

Alison Carey has a history of prostitution arrests and drug problems, and has said she's HIV positive.