She was inserting a long tube like thing in to my sister’s pussy (it was fully covered with hair so I was unable to see my sister’s pussy!). After...taking the tube out my sister started to insert it in to her friend’s pussy. I wanted to watch this for some more time since, my sister was also exposing her boobs (it was also beautiful and big) I was unable to watch it. I gave a tap on the window and they both saw me. They were frightened to see me. I came to my sister’s room after they both. ”After I did, she went on to check my ears, nose and throat. That’s when I felt her right breast lightly come in contact with my arm, I thought I was going to blow my load right there. The scent of her perfume was intoxicating as she continued with this part of the exam. Finished, she stood in front of me and placed her hands on my right knee and asked me to raise my leg up and then down checking the joint. She then did the same to my other knee.After she checked my elbow joints, she said, “Lay. I invited my friend to have dinner with me. At six-thirty my friend said he had to go. I figured it was safe to head home. I would avoid going anywhere near the studio until my mother told me it was safe.When I arrived home at a little after seven o’clock my mother was on the phone with one of her clients. “Yes, it is ready. I sent a photo to your phone. I will ship the original out to you tomorrow. You’re welcome, Fred”Mom put her phone away, “Arthur, You’re back.” Mom motioned to me with her. I took my dick out of her mouth, stood up and got behind her. She stood up looked behind her at me and said ‘fuck me like the slut I am, I wanna feel your cock being shoved deep inside me, filling up my pussy’. After hearing that I grabbed her thong and just ripped it off. I bent her over the couch with a amazing view of her nice ass and hairless tight young pussy that’s just waiting to be fucked. I aimed my cock at her pussy lips then just pushed it in fast and hard. Her pussy was so tight.