Massage Therapy

My sister in law is a massage therapist. She is my wife’s brother’s wife. One time I hurt my back an my sciatic nerve was horrible. She offered to massage me. I went to her place of business. She told me to get naked and get on the table face down. She got to work and massaged my back and by buttocks. Then she said she was going to have me turn over and do relaxation therapy. I wasn’t hard yet until she massaged my chest and stomach then when she touched my inner thigh she grazed my balls and I got rock hard. She didn’t say anything. She finished massaging each leg and my feet. I thought she was done and I went to sit up and she said she wasn’t done. I laid back down and she oiled her hands and started massaging my balls and spread my legs a little wider. She was nice and rough with my sack! I love that. My cock was so hard it was trembling. She took my cock in her left hand, jerking me lightly and slowly as she started to rub her oiled fingers on my asshole then she slowly penetrated me with her middle finger. She started to massage my prostate! This was a full body massage! As she fingered me she took my cock in her mouth and she milked my cock. It didn’t take long and I came down her throat. She was moaning as she continue to suck and drink me! When she was done I was stunned. I looked at her and she smiled and said “All done!” I was very relaxed and I asked “Do you do that to all your customers?” She shook her head and said “No way! You’re brother in law would kill me! I masturbate them and massage their prostates. He knows I do that. That doesn’t bother him.” Then I asked “Why did you blow me?” She just shrugged her shoulders and said “it was huge and I just couldn’t help myself!” I didn’t know what to say so I just got dressed and went to pay her. “No money! I can’t take your money! You’re family!” I then went to tip her and she took that as a compromise. As I was walking out she said that if it flares up again, come back anytime! Should I?