Swingbnb
A swinger couple rents an apartment to spend a weekend visiting Barcelona and have some nightlife.
The beautiful landlady receives them, they ask her the typical things to visit. As they see her so extroverted, they end up asking if she knows any swinger club.
And… oh, surprise! casually she and her husband are liberal and know a great place!
They do not take long to make to her a proposal that she can not deny…