Guidance is required

[WiseOld]

The assumption behind romantic relationships is sexual exclusivity. She assumes that you must highly value the gift she has granted you, that of her being faithful to you alone. When you tell her that you want other men to fuck her, she sees it as proof of your not valuing her gift, her sacrifice to you. For most women, sex must be prompted and justified by love. When you first met, first fell in love, did you want to see another man fuck her? You do now, so what has changed? In other words, telling her that you would like some man that she feels nothing for should indulge in the gift she has given you denies that you still truly love her, still really value her. No one wants to feel undervalued.

Your task is to somehow convince her that because you love her so deeply and value her so highly, you want her to experience sexual delights that other less-confident husbands would withhold out fear or possessiveness or indifference. Ideally, your watching another man enjoy your wife's body should be, appearances to the contrary, an act of love between you and her, with the other man being no more than a living dildo. If you treat the event a live-action porn for your jaded enjoyment or as an act of humiliation on your part—"he has a bigger cock than me, so I had to let him fuck her"—she will either feel unloved or that you were never worthy of her exclusive gift to you.

 

[Lucas4]

Update
I suddenly said what I had not been able to say to her and what I was finding difficult.
As you saw my old post, I was trying to figure out how to tell her about my fantasy (fucking her with a black man).
I told her while fucking her that I love you very much and that sex is fun, but when I imagine a man with a big black cock fucking you in front of me, I go crazy.
And then I kissed her whole body. Maybe she didn't want to upset me, so she started supporting me and talking about fucking me with a big black cock, and I enjoyed it so much.Something I've always thought about. Had sex for three nights in a row and I enjoyed it a lot. Does anyone want to guide me on how to proceed further?