We come back to my house to celebrate a very successful business meeting! We sit down and I thank you for such a brilliant job, there is a bit of flirting and I announce I need to go to the toilet. You dare me to pee there with everyone still in the room but I'll only do it if you do too. My skirt is wet and so are your trousers and we need to disguise it somehow so we take a shower. I think that worked, no one will suspect anything now