It's not that, I just really hate doing it. Maybe I suck at it lol , but I do know that I get really bored after a couple minutes. Intercorse is much more enjoyable as both of us get something out of it.
Side note: I am not too fund of blow jobs either, I just like sex ... so sue me.
I do it because it pleases the ladies, but i find it boring. My tongue is usually in their ass, which is personally a whole lot more exciting as far as i'm concerned.
I had a girl who sucked at giving head and that really wasn't that great of an experience, but another girl I knew was fucking great at it. It was better than the sex. It all depends on the girl. That also goes for going down on girls. Sometimes it's more fun than others.