When R. Kelly was arrested on child pornography charges in 2002, Lanita Carter, his hairdresser, was one of his staunchest defenders.

She told people that he was a perfect gentleman, that they should pray for him, that he was “nothing like what they say.”

Ms. Carter’s vision of Mr. Kelly was destroyed one day in February 2003, when Carter, then 24, said she was summoned to braid the singer’s hair. Once they were alone, she said, Mr. Kelly asked for a head massage. She told him she did not do massages. But then, she said, the singer pulled her head down by her braid, and demanded oral sex. She refused, and said he began masturbating and spitting on her face. She remembered vividly how much he spat.

“Six times,” Ms. Carter said, during an emotional interview that aired Thursday on “CBS This Morning.” Mr. Kelly only stopped, she said, when someone knocked on the door. “Fix your face,” she said he hissed at her, twice.