Pawel Pazola arranged to meet with both victims via an escort website on two separate occasions in August.
The 51-year-old, from Crawley, threatened to arrest and deport both women if they refused to engage in sexual acts and even brandished a fake firearm during the second attack.
He was jailed at Wood Green Crown Court on November 5 for two counts of rape, one count of robbery, one count of poesssion of an imitation fireman which he had on him during the crimes.
Pazola met the first victim, who was aged in her 20s, on August 7 in Camden.
He forced her to engage in sexual acts that she was uncomfortable with.
Pazola met with his second victim, another woman aged in her 20s, at a flat in Bayswater, Westminster on August 22 10.30pm . On this occasion, an agreement was made and again Pazola forced the victim to engage in sexual acts which she had not consented to.
Police arrested Pazola on August 30 at an address in Crawley.
Upon his arrest, his home address and car were searched. An imitation police badge, a black replica handgun and £1,380 in cash were seized.
Detective Sergeant Sam Lockstone, who led the investigation, said: “Pazola is a highly dangerous predator who sought to take advantage of the victims’ perceived vulnerabilities for his own gratification and monetary gain.
“I would like to praise the victims for showing such bravery and courage throughout this investigation and during the trial. I am especially pleased that our supportive response to the first victim encouraged the second victim to come forward.
“The Met’s response to sex work has not changed; our priority remains addressing vulnerability and exploitation linked to on-street, off-street and online sex work.
“Our approach is not to criminalise the sex workers involved but to safeguard and support them, and build mutual trust and confidence to encourage the sharing of information to improve safety. I hope that this sentence demonstrates the Met’s commitment to tackling crimes against sex workers, and violence against women and girls in whatever form it may take.”