We are in your exact situation and have been for over 30 years. She needs more, much more that what I can give her. I am not small but I dont last long and her previous boyfriends were very hung indeed. Months into our marriage she fucked her painting teacher, I find out and was so turned on I almost begged her to go on. During such long time I never fucked another woman and she has fucked countless men. Sometimes she tells me, sometimes is evident, and not too many as i would like, I was there watching, filming, wanking or going second. We have tried many things to be comfortable with our marriage, even being in my case pussy free for four years in a row or she not telling me anything for a pair of years. The only certain fact I can tell you is that the more we fuck,, beiing what it is on each occasion, the more she fucks around and the more she tells me and makes me happier. I dont know the name to call it but it works for us.