She told the Corrupt Practices Investigation Bureau (CPIB) last year about her sexual tryst with ex-Central Narcotics Bureau (CNB) director Ng Boon Gay at a Great World City apartment.
But the woman at the centre of Singapore's biggest sex-corruption case involving a top civil servant insisted in court on Thursday that they never had sex.
Ms Cecilia Sue Siew Nang, 36, the star witness in the sex-for-contracts case against Ng, said he had tried to force himself on her in the apartment.
But she had fought him off and they did not have sex, because if they had, "it would have been rape".
Ng faces four counts of corruptly obtaining oral sex from Ms Sue, then a senior sales manager at Oracle Corporation Singapore, between July and December last year.
In a case that has gripped the nation, Ms Sue took the witness stand on Wednesday and gave graphic details of how Ng forced her to give him oral sex in a car at different carparks on four occasions.
Continuing her testimony on Thursday, the married mother of one said the fifth assault at Great World City happened in 2009 and that Ng was naked at the time.
But Ng's lawyer, Senior Counsel Tan Chee Meng, shot down her claims, saying that she had earlier told the authorities they had consensual sex and she had also sent Ng intimate text messages.
Just friends?
So which story is true?
Ms Sue has always maintained that she never had sex with Ng and that they were just friends.
But on Thursday, Mr Tan sought to punch holes in her testimony.