I can relate Brian. My wife and I are also Christians, and the journey towards comfortable inclusion of pegging into our sexual repertoire has been one of trial, error, and much communication. It sounds like your wife and I have had similar issues, and what it took for us to resolve them was this: My wife needed reassurance that she was the object of my desire. See, for a while, when pegging was still new to us, I think I overdid it in trying to convince her to try, and I showed very little interest in our usual, but otherwise awesome lovemaking. She was afraid that my interest in her was disappearing. On top of this, she had never heard of pegging, and the notion of wearing a strapon made her feel humiliated at first. She doesn't watch porn, but all of this made her feel like I wanted to insert her into my own male pornographic fantasy. It was just too much new stuff, too soon. Eventually, though, I realized that I had been neglecting her and her needs, and I felt awful. So I started a new approach. We talked about exactly what we both wanted and why, and we agreed that new things sometimes need easing into, without sacrificing the tried and tested (and not to mention more meaningful) sex we'd always enjoyed together. Also, I never let my various fantasies take priority over her. She always knows that she is my world, and the other stuff is just extra.