CAPE Town businessman Badih Chaaban, avowedly a Muslim, admits he offered the sexual services of a young woman to the DA's provincial leader, Theuns Botha.
Botha says the offer was a bribe to get him to betray the DA.
Chaaban says it was only a test to determine if Botha were gay.
Botha said yesterday: "Chaaban is trying every dirty trick in the book to unseat the coalition government in Cape Town.
"He has now gone so far as to offer me money and a young woman if I would deliver to him the necessary councillors during the floor-crossing period [which starts on Saturday]."
Botha said Chaaban had offered him R200000 and the sexual services of the 22-year-old woman at a meeting held at Chaaban's request on August 13.
The DA politician said he had recorded their conversation.
Chaaban told The Times he had also made a recording at the meeting and Botha's version was "full of lies".
Chaaban, a former bookmaker and "acquaintance" of slain gangster Yuri Ulianitski, said: "He invited me to the meeting.
"As for the woman, I was not sure about Botha's sexuality so I tested him to see his reaction."
He denied that he had offered the DA leader a R200 000 bribe.