We have tried a few approaches,best so farwe were entertaining two extra men at a hotel, deal was they had to arrive together, and ring from outside. Iwent out and met them, mrs waited patiently, in the room. Ground rules established, phoned her in the room, she put on the blind fold. 3 of us enter room together. She is stood in heels, blind fold and underwear, no talking we all tease her, works well.
Have also done similar with a couple, blind fold 1 and the others play.
