Diapers don't always have to be involved. From a fairly vanilla sex life to diapers being used was a huge jump for the missus and me. Although I do enjoy a good romp in a diaper even when I'm not wearing my wife has the awesome ability to maintain control even when they're not involved. It's almost always a scenario where she's in charge or mommy, but the special moments are when we break away from that (even though it's freaking awesome!) and I get to fulfill some of her kinks. So I don't think I could limit myself to just diapers because Mommy wouldn't always get her rocks off. I also learned to never say never. As in we are never using butt plugs or vibrators.