My late friend's wife

My best friend died late last year (heart attack). His wife is a timid, shy woman, and they had no children. At 53, she wasn't able to look after herself, as she got very nervous when alone. My own wife had died four years earlier of cancer; my two children have their own families now. So, I thought it was only right that I (55) help out my best friend's widow. I had her move in with me, as she knew me and felt comfortable around me. She would keep the house, and I would support her. My job sometimes requires me to travel, not often, but at least two or three times a year. One such trip came up in January, and it was a four-day trip. I took my friend's widow with me; it wasn't a busy trip, everything just spread over four days. We shared a room in the hotel; when not busy with work, we saw the sights. The last night we were there, she walked in on me showering. I was caught masturbating by her; she saw what I was doing and simply undressed, joined me in the shower, and took over stroking my cock. We had sex for the first time that night, and ever since, she sleeps with me. She is timid, but not backward; if she is comfortable with someone, she will ask or do what she wants to do. We are marrying next month; as we live like man and wife, we are just making it official.