Well, there is nothing wrong with this really.

I too don't feel like I have as great of a sensation on my penis compared to the average guy. When I received my first blow job, I was surprised that it wasn't as appealing as I thought it would be.

I've actively chose to stay a virgin through my teen years, up until getting my first girlfriend at 20, so with all that time hearing through friends and porn about blow jobs, I had these expectations about the wondrous blow job.

Na.

I think most of the reason why I've ejaculated during a blow job wasn't because of the pleasurable feelings, but more of a psychological fact that my ex was actually FINALLY doing this thing that I've never experienced.

Don't worry about it so much, as long as you can have sex with your girl and she doesn't start getting low self esteem issues because she thinks you may not be attracted to her enough, you are fine.

my wife comes best with oral sex, much more faster and better than in the "normal" way. And so i like to lick her because of her wonderfull coming!! thats a great fun for me.
and i believe you will get and find the fun of licking your wife, if you will alive this.
Otherwise she doesnt like to give me a blowjob - pitty- because i like it very, very much!
but if she does it in rare cases, than its very difficult for she, until im cuming - like in your case.
so you can see, thats normal with many men.