I first noticed her body 40 years ago, in school. I wanted her badly then, but figured I didn't have a chance. 37 years later I encountered her once again, that encounter was the last time we saw each other, without ending up in bed. Sex for the last 3 years has been unbelievable. The first time she straddled my face and rolled her hips pushing her pussy hard into my lips, my tongue inside her to its limit; I started to worry it wasn't an orgasm she was having, but rather a convulsion. Her eyes had rolled back in her head, then she shook violently. Until I tasted her cum, and she started moaning. I quickly learned she was equally as comfortable with my cock in her mouth. Our once or twice weekly encounters have held nothing but mutual, sexual desire. Our most recent encounter began with me applying oil to her back, bum, legs. I made sure to let oil run down the crack of her ass. Massaging the oil in her legs my fingers would gently probe over her pussy and continue along the crack of her ass only as deep as slight pressure would allow. When I moved to massage her bum, my fingers probed deeper. I knew she didn't mind from previous massages. I could feel her lift slightly as my middle finger circled her tiny ass hole. Did I mention, she has a tiny build? Slowly my middle finger penetrated her ass, she moaned softly. My finger was well oiled, and I wanted her to be as comfortable as possible. She felt warm, tight, but was relaxing and accepted the length of my finger in minutes. My other fingers could easily slide inside her pussy lips. When I slowly removed my middle finger and asked if she wanted more oil, she replied yes. I then asked if she wanted to do something different, ok was her answer. I straddled her as she lay flat on her front. I was completely surprised when my cock easily slide inside her ass, and she tightened her cheeks to keep me deep inside her. When she relaxed her cheeks I would pull out some and then slowly push in. Her cheeks tightened on my cock every time it was as deep as I could go. My cum would be far inside her ass, and it wasn't much longer before she felt its heat. Her cheeks tightened hard on me when I came. I climbed off her and we cuddled and kissed. After we got cleaned up, we cuddled up, content with our sexual pleasure. Morning came much to early! I look forward to sliding into her perfect fitting ass again soon!