Qui? Police - issue 123, 1981

"Qui? Police" was a weekly French magazine containing crime related news articles.
Published between 1979 and 1982, it presented contemporary stories as a detective novel, failing to mention any kind of source.  Often writers placed themselves in the participating role of a direct witness rather than adopting the investigative approach of a reporter.
So its contents can be called dubious at the very least.

Issue 123 published on 28th May 1981 saw Ulrike on the cover stating: "The announcer prostitutes herself at night in a brothel".

The article itself makes claims ranging from doubtful to outright preposterous.
It tries to convince us that Ulrike begged her father to make her an announcer on a television station, which she apparantly became at age 19.  Her rise in fame led to parties where she was introduced to various drugs resulting in a destructive heroin addiction.  Desperately in need of money for her next fix, she got lured into shooting porn films (sometimes simulated) sporting a wig and a pseudonym, while resuming her career in broadcasting.

Still not earning enough cash, she then followed a friend's advice and became a lady of the night.  While working at a Hanover brothel as a prostitute she got a surprise visit from her father, to whom she confessed all of her troubles.  When short after her father passed away, she was left behind all alone and attempted suicide.
Yes, that is where this "story" ends.