Shortly after our last correspondence I began to get pimples all over my back side, on the cheeks and by the crease of my leg, on both cheeks. I did not mention that on September 22nd I had another encounter with the same person,  because it was after the rash had occurred on the back of my knee. So these pimples showed up about 3 weeks after this later encounter.  They were not in clusters but randomly over my butt cheeks.  The was no blisters and it wasn't really painful. But if I touched them directly there was some soreness.  They also seemed to appear more noticeable at night. I figures it was butt acne from the stress I was feeling.  When you read online it says that herpes can be mistaken for many things. Obviously I have been paying close attention to my body. During this last encounter that was now 6 weeks ago, I received protected anal sex for less then 10 seconds because it was painful (first time). Would pimples randomly spread over the butt cheeks be herpes?  They showed up about 3 weeks following this encounter and are pretty much gone now. I did do a lot of acne treatment in the last week. (Exfoliating,  cleaning, salicylic acid cream). I actually made an appointment at quest diagnostic to get tested but did not know that I needed a perscription.  So it will be a couple days before I am tested.  

 I also had a question from the last time. If the outbreak behind my knee is in fact herpes, would it normally show up in the same place?  Also everything I read says that people often mistake herpes for other things. How often does it show up in a atypical manner that even if you are looking for it you would not know?