I am in the military and have been gone from my hometown for the last eight years except for two visits during leave for vacations. I had a good friend from high school who still lives there and wanted to visit him about three years after I joined the service. At that time he had been going to college studying medicine and still lived at home so I got in touch with him and he said I could stay at the house while I was in town. Things went great the first couple of days then he told me that he would pretty much be gone all day on the third as he had a lot of classes that day and would be home later in the evening. I figured I could visit some other people and other stuff so no big deal. I woke up and came out into the kitchen and said good morning to his mother. She is attractive and I always thought she looked younger than her age even in high school but always treated her like my best friends mom. She asked me what I had planned for the day and I replied nothing much. After breakfast and some talking she came over and took my hand pulling me up from the chair, led me into her bedroom and proceeded to make love to me like I had never experienced in my life. She and I made love four times before I left to go back on duty and I figured it was a fling and that I was very lucky. Well I came home again about two months ago and had not seen my friend for about four years this time and he has become a doctor and no longer lives at home. I showed up at his place and we talked for hours and he told me I have to go with him tomorrow for dinner at his moms house because she wanted to make us a big dinner. Long story short she whispers to me that I needed to come by the house tomorrow because she missed me and wanted me. I was floored but showed up the next day and sure enough we made love for hours. She asked for my mailing address and she has already sent me four letters. I am starting to think she wants to be more than just lovers every few years because she is already asking me when the next time that I would be coming to town. So now I am worried about my friendship with him and how I would explain myself should his mother become upset that I do not come to town very often.