Why don't you buy a supply of dental dams, Op. Perhaps if he doesn't have to taste or feel directly, he'll finish ya up nice?
Your man is afraid of the vag. Find a way to get around that fear that will end up compromising and resolving rather then depriving one another.
Good luck. Tell him what they're for and what you want him to do with them and tell him that at least trying is very important to you. Hopefully he's not a big giant, selfish baby about it and refuses to at least do that.
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Here's a link just in case neither of you know what a dental dam is.
http://www.sexualityandu.ca/stis-stds/how_do_i_protect_myself_from_stis_stds/dental_dam
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Bloody hell: Looks like admin has dis-engaged the hot link once again so you'll have to cut and paste it into your browser.
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion