A journalist has alleged in a new book that President Jacob Zuma forced himself upon her and gave her a "long, determined kiss" before she managed to pull away.
The Sowetan reported how an unnamed journalist made the accusation in a new book, "Khwezi", about the late Fezekile Ntsukela Kuzwayo who, in 2005, accused Zuma of raping her.
He was acquitted of the charge in 2006.
The book describes how Zuma invited a female journalist to his home in Forest Town, the same house where Kuzwayo, who became known as Khwezi to protect her identity, accused Zuma of assaulting her.
After Zuma called his aide aside for a private conversation, the aide subsequently left.
Author Redi Tlhabi writes that Zuma then asked the journalist to accompany him to another room as he wanted to show her something.
"ZUMA TOOK ME TO HIS BEDROOM AND GAVE ME A LONG KISS" pic.twitter.com/gbaJ0cHFLI
— Adolph (@Adolph_89) September 14, 2017
"She followed him, he opened the door to a room and she stepped inside. It was his bedroom. Before she realised what all this meant, he had his arms around her, pressing himself against her body, and he planted a long, determined kiss on her lips.
"Her back to the door, she froze for a moment as his tongue invaded her mouth." Tlhabi writes that the journalist managed to pull away from Zuma and told him that she was on her period.
"He loosened his grip and stopped kissing her. He was smiling, warm and friendly. Bizarrely, he reassured her, telling her not to worry because they could try next time."
Zuma's spokesperson Bongani Ngqulunga told The Sowetan: "The presidency is unable to comment on allegations by a complainant who has not been identified."