Court heard man floated idea of threesome after watching erotic movie Fifty Shades of Grey and developing fantasy for soft bondage.
A twisted fan of Fifty Shades of Grey was recently jailed for 24 years after he tied up his girlfriend before letting her get raped by a stranger.
The 27-year-old man, obsessed with bondage was also given 24 lashes of the cane after a trial in Singapore.
According to reports, the former police support worker suggested having a threesome with his partner of two years and another man. However, when she refused, he hatched a plan to trick her into the sex act.
He took his girlfriend, who works as a nurse, to a hotel room where she agreed to be tied up and blindfolded before the pair got intimate.
When a man started touching her she naturally thought it was her lover.
However, she started struggling when she noticed two hands were around her waist and a third was checking her blindfold.
She managed to wriggle free and remove her eye mask to discover a stranger had been having sex with her. Horrified, she left the hotel.
Police later arrested the boyfriend, and the other man, 22, at the hotel.
At a trial, a court heard he floated the idea of a threesome after watching the erotic movie Fifty Shades of Grey and developing a fantasy for "soft bondage".
After his girlfriend rejected his suggestions, he conspired with a stranger he met online to organise a threesome without her knowledge.
He was sentenced to 23 years and 11 months in jail and 24 strokes of the cane.