Mother-in-Law Fantasies

My mother-in-law is a totally awesome woman, a tease and very desireable I have had desires for my MIL for years. She is in her mid-70's now, but still a flirt and a tease along with still being very attractive. There are many stories I can share, but we tease each other a lot and very open when it comes to sex. In our joking and teasing, I've actually squeezed her breasts a few times over her blouse or nightgown. I've let her catch me nude numerous times and don't try to hide from her. Just need to be careful with the wife around. My MIL has lived with us for a few years now, giving me plenty opportunity for my little exploits. Our bedroom is directly down the hall (maybe 25') from my MIL's bedroom. As she walks out her door to the bathroom or to go downstairs, she has to walk directly torward our bedroom. The bed is situated on the wall opposite the door and as luck would have it, my side is directly in line with the door. About 3 weeks ago, my wife had left for the morning and I was still in bed. I was in one of my normal horney moods and I love to masturbate laying on my back on the bed. I knew my MIL would be getting up soon, so I layed there waiting. In a short period of time, I had thrown back the covers and layed there playing and keeping it hard. Being on my back, I could have my eyes slightly open with a plain view down the hall to her bedroom. I noticed movement in her room and just continued to stroke my dick. Sure enough she walked out of her room to the bathroom in her nightgown. She looked into my room and stopped for a few seconds probably not believing what she was seeing. She went into the bathroom and when she came out again looked my direction. I was still enjoying it thinking although she has seen me nude many times, she had never seen me actually masturbating. She went back into her bedroom and was milling around just inside the door and occasionally looking back my way. Since I was on top of the covers, it was very obvious that I was masturbating, with my hand moving up and down on my cock. She glanced up several times for a few seconds each time. As much as I was hoping she come in and offer to help, I knew that would not happen. She finally stood at her door looking at me for what seemd to be a long time, but in reality maybe 30 seconds or so. After that, she closed her door all the way, which in itself if very unusual as it is normally left slight ajar. I knew that was the end of my little performance so I went into my bathroom and finished my deed and it was awesome. When I cleaned up, I again checked her room and the door was still closed tightly. I had to wonder exactly what she was really doing in there. I would have given anything to been able to see into her room at that point. Nothing was ever said about that little epsiode but am working at repeating it soon again.