My wife and I have been together for nearly 35 years, married for 31 of them. Our sex life has always had an undertone of me pushing for another male to join us, even though it's been through fantasy. Right from the early years, I've always got off on the thought of other men eyeing my wife up, finding her attractive but never let on just how much these feelings consumed me, in those early years. Thinking back, as a teenager, before meeting my wife, an experience I had, with friends, in one of our houses, with parents out, seems to have been the catalyst for what has been a lifetime of being unable to get off on anything else. A group of us, just listening to music, chatting, a few of us trying to drink as much as possible to outdo each other but then out of nowhere, the room started to fall silent, almost awkwardly, at the sight of a girl (I barely knew) lifting her skirt up around her waist and lowering herself down on to her boyfriend's exposed cock, through his unzipped trousers with little to no shame. The way she felt around for him with her hand, guiding him straight in was such an experience to have witnessed at 15 years old. The more friends looked on, the more the girl seemed to enjoy herself. Incredibly, a few others just carried on drinking, and returned to choosing the next record to put on - but I was transfixed, I couldn't stop looking, and have never forgotten the girl catching my eye only for her to close them again as she slipped back down on his cock - truly mesmerising. I'd actually say that the incident has damaged me, because I've thought of nothing else, throughout my married (sex) life of putting my wife in that position. I want her to feel the same excitement of being looked at and desired. My wife isn't the type of woman that would ever discuss anything sexual outside of the bedroom so it's been a slow process of trying to bring up the thought of showing her off to a stranger. Whilst being intimate, I always initiate the talk of her being open to trying something maybe outside, in the car, and I think she does see it as a turn on too, but seems reluctant to agree as she says it may put our relationship in danger and that's not something she wants to do. Outside of the bedroom, I see her point and sometimes question whether I'd really like to see her exposing herself. But the time spent fantasising about her unbuckling another man's belt and then proceeding to unzip his trousers, watching her tug this trousers down to his knees and finally watching her take out another cock to wank or suck it, to the point of him cumming over her is just too much. My wife does in fact find this a turn on too, and has exposed herself in the recent past, albeit in a hurriedly unsuccessful way, whilst in the car. She couldn't understand why I wanted her to try it for real outside of the bedroom, saying that she felt too old now at her age. We totally chose the wrong location, it needed more seclusion than we had, and the whole passing glance of another man felt a let down for me. But my wife admitted that opening her legs for somebody other than myself albeit for a glance, felt incredible. She described the feelings of holding her nerve and keeping herself exposed as exhilarating, saying that she almost felt sexual claustrophobia, whereby she just wanted to be centre of somebody else's attention. It's a slow process, a few months have now past and nothing has been discussed for a future outing. I guess I've just got to keep hoping that she'll surprise me one day. Perhaps it's better in your head anyway.