When I left for my room, I quipped, "Mom, since you like my cum so much, I don't think our client would mind sharing." I stayed at the bottom of the stairs while Mom skipped down the hall to meet Monica. She entered our bedroom, and seconds later, her robe flew out the door, landing on the hallway floor. I heard her screech, "Sam left such a mess here. Let me clean you up." Sounds of sexual pleasure emanated from our room while I went upstairs to take my shower.

When I finished drying off, I looked out the window and noticed Rachel walking down the sidewalk half a block...