When ive discussed this with multiple women ive been in long term committed relationships where cuckolding was involved, we had to take deep looks at ourselves and relationships and how we handle them in life and what we want from them. I seek out beautiful women with high sexual energy out of my league physically , who I know will eventually be prone to think about, though are good enough girls to resist the urge to cheat and who I build up over time by reassuring them how good their pussy really is and they are so pretty and attractive, if they naturally deserve to seek out and have sex with similar physically fit and attractive males since if they were single, they would probably have multiple partners anyways, and if we follow some safe relationship rules, we can both enjoy her experiencing this as a couple without threatening our relationship in any way and even growing closer as a couple but only after a lot of discussions, agreements of rules and boundaries, fears, pros/cons and admitting we both want it for her and that she admits her hidden thoughts/desires to have sex with other men than me and ideally they would be taller, fitter, and have a larger cock than what I have, and while she loves me and is happy with me sexually, if we were to agree to try this, she would prefer to choose a lover with a larger hung cock to please her because it would be feel different than when she is with me and help remind her this was just sex no feelings.. Plus when she fantasizes about being with other men, thats the type of man she physically imagines wanting to have sex with more than once....And desires an alpha in charge lover who would take control of her and eventually me and dominate us.. if long term she really needed to be with someone who she could dominate me in front of her and kinda be in charge to really feel comfortable that I submitted to another guy and was kinda scared to stand up to allow her to feel comfortable being with him and me around at the same time and feel safe I might be too scared to pull the plug if I felt insecure..that she would be in control and he would back her up..so if things and feelings changed, it would be safe to tell me things and she would be free to explore them without worrying about me scaring him off..
Eventually we found that male and several more over the years...some more dominate over us than others, with the ones she fell in love with and wanted a relationship, me fluffing him infront of her and us eventually discussing her love for one of them enough she thought about letting him knock her up and having him in our lives long term as a distant second husband and step ******* to their baby, a request he made and she was considering it and wanted to let me know if it happened she wanted us , as a couple to plan out fertile days and make our house comfortable and have anything they might need at an arms length like rags, water, shower ready/towels so that i could serve their needs and help make their sex more comfortable and easy over those days.. us taking off work... and me sleeping beside them at night and helping them both have as much sex as possible in any way I could be useful.. fluffing him often to get him hard...holding and massaging his balls while he is inside her so he cums easier..holding her legs open for him, wiping them both down afterwards and helping prop her up so his cum stays inside her, only licking what drops out, encouraging them during sex, changing sheets, holding her during sex and holding her hand lovingly, preparing a shower for them and helping wash/clean and dry them and then dressing them/undressing them before/after and if they are walking aruond the house and about to randomly have sex, laying a blanket or allowing them to lay/lean against me so they are more comfortable and in place but always making sure my wife is in missionary position before he cums and letting her see me suck his cock before guiding it into her to remind her of his/my roles and encouraging him to cum inside her at the end and her telling me how much she wants his baby....
And i admit, it would have been a turn on to see their mixed baby suckling on her tit with him making visits and them handing me the baby while they have sex in our bed next to the crib with wedding pictures and a pic of her pregnant belly next to it while having sex in our bed