I Knew She Was watching
I'm a 45 year old man and my in-laws live with my wife and me. Today my wife took my father-in-law to the shops whilst my MIL and I stayed at home. I went to the bedroom and started masturbating. I knew my MIL could see through the open door but I did not care. I finished and she watched the whole thing. Now I feel terrible and have a great deal of guilt.