Four people originally charged with smuggling people into the UK after raids in Surrey, Kent and London have pleaded guilty to keeping a brothel. Sentencing of Ian Lindsey, 43, Maxine Soper, 24, and Vincent Calleja, 44, of Tadworth, Surrey, and Cherice McIntosh, 20, a Beckenham student, was adjourned.
Other charges faced by Lindsey, Soper and McIntosh were ordered to lie on file at Guildford Crown Court.
Decisions will be made in March about other charges faced by Calleja.
Calleja, a property developer from Lower Kingswood, had admitted brothel-keeping on 23 November, when he also pleaded guilty to two counts of facilitating entry of another person into the UK for sexual exploitation.
Raids across the South East originally led to five people being charged with human trafficking into the UK for sexual exploitation, false imprisonment and controlling prostitution for gain.
No evidence was brought against Daniel Ghitulan, 18, a Romanian citizen living in Surrey, whose case was discharged.