if you husband is like mine he really doesn't like cum... which is strange to me because it's his so what is the big deal?
but this does open up a lot of fun ideas that further humiliate him. each of these require me to tie him to the bed. get some handcuffs, tie him to a chair, or get one of those 4 point under the bed restraints and use it to restrain him.
once he is secure, he's so fucked. literally...
1, go down on him, giving him a caged BJ. no need to remove the cage. make him strain against the cage and restraints. grab a vibrator and place it on the head of the cage. if he has been locked up enough or if you've done a good enough job with the BJ/vibrator, he will cum. importantly, as soon as he starts to cum, remove all stimulation from his caged cock (he doesn't deserve any pleasure from it), just collect all of his cum in your mouth. don't swallow it. climb up to meet him face to face. look him deep in the eyes and give him a big wet kiss... push all of his own cum into his mouth. demand he swallow it.
2, bind him face down. put on your strap on and peg him until he cums. if he needs help cumming this way, use the same vibrator trick as before. when he cums don't waste it.. grab it all and cover your strapon with it. cum make the BEST lubrication. continue to fuck him with his own cum.