I think the one constant in relationships is that communication is key*. I'd ask him again, and whilst I agree with BabyDenise's suggestion to raise the idea in a light-hearted way, it's also important to make it clear that this is an activity where you want to feel a genuine enjoyment and intimacy, and not for a joke or 'just for the hell of it'. Otherwise there's a chance that it'll cause tensions if he sees it as a bit of silly fun, when to you, it might be an intimate and nurturing experience (which the vast majority of DLs seem to see diaper changing as).
If he doesn't want to do it, it's disappointing, but I think if he says no again this time - give it a cooling off period. It's more likely your husband would come around to the idea and approach it happily if he doesn't feel he's
under pressure to do this. Anyway, best of luck Soosieque.
*says the hypocrite who likes to babble incoherently to his girlfriend when in AB mode.
