LaRue and any of her friends would be a great choice!
i think the whole threesome thing would be too much going on. However one hing that I've always had in mind, is getting a double bj balls and all at the same time. You think it'd be worth it for this one specific deed? Also if I got two of my favorite providers, would they be able to swap spit like this if they didn't know each other?
i would suggest getting to girls that already play with eachother and are friends. I have a whole page of my girlfriends list and we could def provide this.
xo
LaRue McCay
...would be the perfect pair too make this dream come true 
Check us out... we never disappoint 
xoxo Vanessa Monet
LaRue and any of her friends would be a great choice!
If you just have to have it - cost is never a factor.
If its one of those fleeting ideas from time to time perhaps you can do without - but I say life too short not try everything you want to explore!
As for whether providers would do this - you'd have to ask the girls in question. Porn girls would be most likely to do it.. we're used to doing crazy stuff with girls we don't know.
& have worked with each other & let them know your fantasy to make sure you get what your looking for. There are so many options & scenerios with 2 girls its important to communicate to get what you need. Chemistry is also more important with multiple people especially 2 girls. The more the girls click the better chance they can fulfill your fantasy to the fullest darling.