OK, so I did a duo once a while back, and it was quite fun - the ladies advertised on craigslist, and it was the same price range as just one girl on AW.
Two girls - that I've seen separately before - say on their profiles that they also offer duos with one another. I thought I'd enquire - got asked for £400 for an hour - normally they're £150 each, on their own.
Has anyone else experienced this? All the other duos I've seen advertised on AW have been either less than, or equal to, the combined costs of the girls on their own.