Two men pleaded guilty Tuesday to operating a brothel at a U.K. university as part of a gang, and joined five other gang members who were jailed in January.

More than 50 women from eastern Europe were rescued from the University of Sussex's Falmer Campus where they were working as prostitutes during the holidays, according to The Daily Mail.

The two pimps, Csaba Safian, 33, and Sandor Mohacsi, 35, were jailed after authorities found them using university rooms in the U.K. during the holidays as part of a brothel where they trafficked young, poor Hungarian girls.

The two were allegedly involved in the sex trafficking operation between March 2011 and October 2012.

Safian brought 53 girls aged 17 and older from a poor part of Hungary to work at the brothel.

While the girls were not forced to stay, circumstances proved impossible for them to leave.

One woman told a prosecutor she had previously agreed to see 10 clients per day for 100 GBP, but was made to see more than the agreed upon number on her first day.

Though she complained to Safian, she was told it was because she was "a newbie, and fresh meat, and things would quieten down," Prosecutor Amy Packham said according to the Daily Mail.

Due to their economic plight, the girls could not afford to fly back home and were often chaperoned by gang members when they went outside the university.

The brothel was first discovered by a building manager at the university who received the emailed ad for sex services in March 2011. He recognized the curtains in the images and the university was then made aware that the gang was using a two-bedroom apartment during the Easter holidays without the real tenant's knowledge.

Both men were sentenced to more than two years in jail.

Five other gang members had been sentenced in January when it was discovered they made 20,000 GBP per week from the prostitutes while using hotels, brothels and university halls.

They told the women they brought that they would be working for a massage parlor but instead were advertised on websites as "fresh meat" and told their real work would be shared back home if they tried to run away before paying off their "debts," the Daily Mail reported.