Doctor scares patient with his halloween nurse

My patient today was from France and she was here in Prague for a holiday with her husband. She explained to me that she was having pains in her stomach when having sex with her partner, but she didn't want to say anything to him as she wanted the holiday to be perfect as he works very hard. After a quick examination I could not see any reason for the pain so I suggested that if I bring my nurse into the room to show her some sexual positions that may help her to ease the pain. She agreed and then in came the nurse, to much of the surprise of the patient as she was all dressed up ready to go for the Halloween party after work and she was covered in and looked quite evil. Then the nurse started sucking my cock she is very good at this, the patient was embarrassed and kept turning away but I told her she needs to watch for technique. Then I had the nurse lie on her back and I started to fuck her very slowly, I could now see she was starting to get turned on and then I asked if she wanted to take the nurses place so I could show her in more detail. She agreed and sat on the table this was gonna be a great threesome and I couldn't wait to get started.