Naughty Game The thrill of the unknown

Naked, in a hotel room, blindfolded and the door ajar. The lady will be visited by a man without knowing whether it is his partner, a friend or a stranger he has chosen. Will she be able to recognize the one she wants?
What if a stranger arrives at the hotel before the gentleman? Are you a libertine couple? Sir, will you accept that Madam takes pleasure in having pleasure with a sex other than yours?