Only duo i know of are Thais Sonya and Meena Hot, and those two are absolute goers, expect a lots of sucking and rimming. They charge 250 for an hour which is a giveaway. 

https://www.escortrankings.uk/meena-hot-escort-birmingham-237008

https://www.escortrankings.uk/sonya-escort-birmingham-161227

Hi, I am visiting Birmingham next month and looking for recommendations for great 2 girl visiting escorts (.preferably British). Seen a lot of bad reviews about European girls from the 3 main agencies.?Anyone booked and had a great experience?