I use to not mind giving blow jobs, but my DH is longer than most and he has a prince albert;( It was okay doing to to exes who weren't as blessed and not pierced but I usually have to be pretty tipsy to do it to my DH. Since becoming pregnant though I have done it more than I usually would cause I just felt like switching things up. This may sound bad but I gave him a blow job and he bought me a new pair of Ugg boots the next day I think that was his way of letting me know he really apperciated the favor lol. The more I do it I'm learning different ways to make it less uncomfortable for me.
I have a friend who never sucks dick, but she gets oral ALL the time. And I used to be vice versa before SO, I'd suck dick and almost never get oral. But I like it so it was whatever lol if you don't want to do it then don't, but if your man doesn't wanna do it anymore on you then you can't get mad. Give and take!