Many men would do this if the situation came up and they felt safe from judgement and or ridicule.
I wonder about this. Maybe not wanting to do it, but be willing to try it just to make wife/gf happy. I do think it would be very important if I were to try to get my husband to do it to constantly reassure him that I love him very much, that him sucking a cock doenst mean anything, doesnt mean he is gay or even bi, that I th ink its very very very sexy, and i think also very very important to reassure him that NO ONE will EVER know about it.