SINAGPORE- Posing as a girl, Johnson Song Jian Sheng tricked a 16-year-old girl into an online game of "strip" hangman.
He later used the screenshots he took to coerce her into exposing herself further.
Yesterday, the 24-year-old was sentenced to four weeks' jail.
His lawyer, Mr Rajah Retnam, argued in mitigation that while Song had used a false name, this was a common practice on the Internet.
He also pointed out that the victim had volunteered to strip while playing hangman, and Song's actions were not planned.
But District Judge Lee Poh Choo pointed out how Song repeatedly lied to hide his identity to take "advantage of a very young schoolgirl".
She also agreed with Deputy Public Prosecutor Sarah Ong that there was a high risk of the pictures being circulated online.
Song, who could have been jailed for up to two years and/or fined for criminal intimidation, got to know the girl when he befriended her on Facebook some time in June 2011 using the name "Eunice Chong", and later, "Care Foryouu".
On July 2, while at home, he persuaded her into playing a game in which the loser had to remove a piece of clothing.
He also told her his webcam was not working, which was why he could see her but she could not see him.
Thinking Song was a girl, she agreed. When she was left wearing only her panties, he asked her to pose and took several screenshots.
On the evening of Nov 6 - four days after his 22nd birthday - Song, who was then doing his national service, sent the girl a message on Facebook, asking her to chat over the webcam again.
He then threatened to post her semi-nude photos.
About 11/2 hours later, he sent her two of her pictures, and another of her aunt's company website. He then warned her that he would post her photos online unless she posed for him.
When asked to show her private parts, she exposed one breast and pushed down her panties.
The girl made a police report the next day.
Get a copy of The Straits Times or go to straitstimes.com for more stories.