"There must surely be more to Leicester than this?"
I'm afraid not. Ladybirds - not 'Bluebirds', by the way - is a blue collar joint but it's still a cut above X-Lounge and Hollywood Massage which are very, very seedy indeed. It would appear from the websites of all three that most of the girls are as rough as old boots. As for the other places on Narborough Rd - 'Trudy's' and 'La Dolce Casa', as far as I could tell when I had a quick look last year they're run by East Europeans, for East Europeans, and staffed exclusively by East Europeans. Whether the poor girls have a choice I wouldn't know but I'd avoid those places like the plague.