Happened several years ago, before I met my wife.
I met Ashley while working for a company in a nearby city. This company was owned by a total douche and dumbass, who will be referred to as "Shiny". Ashley was a freak, willing to do anything I asked her to do sexually. Suck on my balls while I work on the computer? No problem. Fuck for hours, roughly, without getting sore or complaining? No problem. Never dodged a rope of my come either, but she was a little crazy. Ok, alotta crazy.