It's "Usually" what they charge individually for their hour added together... I think anything from 240h - 260h is fine for a duo personally... You could always ask one of them in comms if it's not stated on profile, though I'm taking it is from what you've said... 
More often than not, yes.
But I've seen a few discounts for touring duos recently, including these two that I had an awesome time with when they were up a couple of months ago -
External Link/Members Only /
External Link/Members Only. First time in years I've cum twice so easily in a half-hour booking without the aid of anal - but with the help of two filthy sex kittens egging me on, and a few sniffs of poppers.
Think I paid 140 to have the pair of them fuck each other as well as me - meaning a 20 quid saving going by the duo rates on Annabelle's profile compared to their individual 30 min rates. Need to get a review up, though both are already well-covered on here, and Annabelle's since seems to be shagging her way (no doubt lavishly) round the Indian subcontinent.
What really stood out in terms of discount though, was £140 for a lesbian show with this pair -
External Link/Members Only /
External Link/Members Only. Think Holly was charging 90 for the half, while Amelia could've been 100 - certainly no less than 90, but her prices are currently down. No matter how you cut it though, that's still a saving of 40 quid minimum, if not 50, to bang one while she licks the other.
You can tell how gutted I was though when they fucked off early before I became available myself.
Especially Amelia - body built for sin with two good reviews.
