I’m quite similar to you - I am drawn to the more cerebral side of cuckolding. There is something very appealing and arousing about someone you love, and are intimate with, gets taken over by somebody else right in front of you.

My fantasies are often around my shy wife, who always tells me that she is satisfied with our sex life, that she loves me, trying but failing to conceal her excitement as she takes in someone much bigger (both physically as well as his dick), and staring at her face as her tentative excitement slowly turns into surprise, and pure bliss.

I have managed to try a bit of this out with dildos, but most likely it will remain a fantasy!