also going to second this. ask a provider you like for her play partner preferences. if there is already trust and established connection your mileage will go much further and they will be much more creative and eager to please. its the most awkward thing playing with a provider i literally dont find attractive or appealing as a person and I have turned down duos for this reason alone. for us, if we're not bisexual a lot of us are bicurious and so its playtime for us too.
As a die hard interactive duo bloke, it is essential that the ladies know each other or at least have the hots for each other and are willing to go under the doona and get on the job with each other lol. Even in the style suggested by the OP - a non-interactive style - it is still very important that the ladies feel comfortable with each other. Thus a lady -indy or agency - will typically make it known if she does duos, and what style, and if she do them, she'll usually have a name or three she feels comfortable with.
Well you can always go with different providers if you don't want to do that. What I'm saying is, if you NEED to have a duo with two providers who dont know each other then do this..
