It seemed almost too good to be true.
The women claimed to be American students living in Singapore.
And last year, 'Marsha' contacted James (not his real name) through an adult dating website, offering him access into an exclusive group sex club with "pretty American students on holiday in Singapore".
The sex parties, Marsha claimed, are held at a five-star hotel every month.
And to sign up, all he had to do was to hand over his credit card details to pay for a one-time joining fee of $100.
James went to the hotel and waited in the lobby for three hours.
Marsha never came and he went home to his wife, telling her that he had fixed a problem at work.
"Looking back it was a silly thing to do. I had never met those girls and my credit card was used to pay for something I never bought," the 39-year-old, who works in the hospitality industry, told The New Paper.
Adult dating sites have been in the spotlight recently and many have criticised them for promoting adultery.
But it seems there is a bigger danger: Scammers are also targeting these sites to cheat men of money.
Although suspicious at first, James gave in after he spoke to Marsha on the phone.
"She was definitely American and that, to me, was a confirmation she was real," he said.
Attracted by a picture of a doe-eyed, dark-haired young woman on the profile page, James added her to his list of friends without another thought.
"I then entered my credit card details into the website she gave me around midnight that night. I then left home and headed to the hotel hoping she would call me."
He ended up waiting at the lobby for nearly three hours but no call came.