Other than the clothing, I have done it. The provider came to my office at 5:00 as people were leaving. I had a second desk in my office at the time (there had been two people in that space before i moved in and I never got rid of the desk), and we totally fucked on top of it. She left a butt print that was only visible in certain light, but in the late afternoons the sun hit it just right so that I could see it from my desk. It was there for months -- just a nice afternoon pick-me-up -- until someone dusted
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It was a good time, for sure. I also enjoyed sitting in my office chair getting a blowjob from her on her knees in front of me. Kind of a power-fantasy for sure. It made me wish I was smoking a cigar and drinking scotch.