An American couple's unfortunate backpack trip into the underworld

I was thinking this would be a RP for three people. I'd need two women, one submissive and one dominant. It would involve an American couple backpacking across Europe. When they decide to stay at a little bed and breakfast or hostel, they're kidnapped in the night and wake up bound in a room filled with all sorts of BDSM equipment and a camera. A woman approaches them and then the real trouble begins.

Roles to fill...
Girlfriend:
Dominatrix: