Former civil defence chief Peter Lim Sin Pang had 'misled' Ms Pang Chor Mui by not rejecting her, and took advantage of her on May 2, 2010, the day he allegedly obtained oral sex from the woman.
This was what the prosecution set out to prove when they began their cross-examination of Lim on Tuesday.
Lim, 52, told the court on Monday - the first day he took the stand - that it was Ms Pang, a long-lost close friend, who had tried to take their friendship to another level after they rekindled their friendship in 2009.
But Deputy Public Prosecutor Tan Kiat Pheng, disputed his claims and said that Lim's passive response to two flirtatious messages sent by Ms Pang, before they met for their fourth lunch in February 2010, had led her on.
After lunch, while waiting for Lim's driver to pick him up outside Parkway Parade, he claimed that Ms Pang had seduced him by pressing her body against his. But instead of outrightly rejecting her, Lim had led Ms Pang on by telling her that "this is not the right time, said DPP Tan.
Lim faces a charge of corruptly obtaining oral sex from Ms Pang, 49, the former Nimrod Engineering general manager, in exchange for furthering the business interests of her company.
Mr Tan further sought to show that Lim was fully aware of what he was doing on May 2, 2010, by firing a series of questions at Lim, on his state of mind that night. Mr Tan told Lim that he could not have been tipsy that night, considering that he was a health-conscious man and did not have a habit of getting himself drunk.