I’m so glad you are enjoying the different that amazing toy makes! It’s incredible isn’t it, and even with it just as a strap on, it’s still very intimate I find, especially in missionary or spooning. But just like getting oral, he’s focused on giving me pleasure, which also really arouses him!
In regards to the cuckolding, I think it’s just realising that even if you find it a hot fantasy the reality can be incredibly destructive. Whenever you introduce another person into a relationship you have lost control of where it is going to go. Even a threesome can have a huge negative impact as far as I’ve ever seen.
When you think about the possible negative consequences it’s a bit of a cold bucket of water on the fantasy in my opinion, which is why for most people that’s exactly what it should stay.