This is the thing about sucking cock...
It's like falling in love. It just doesn't make sense.
For example, an old girlfriend of mine told me that sucking cock was boring, but she liked to imagine that guys fantasized about eating girls out.
Plus, the first time I ever blew a guy, the guy came so hard he passed out, and the second time, the guy forced me to stop because it was too intense. Meaning? I can suck a cock better than anyone in the world. And I wasn't even trying.
That 13 year old that I fucked blew me so bad that I actually started to lose my hard on. I literally cannot conceive of a way to suck a cock bad, but it just happens.
So blowjobs are like the blues. You just gotta feel it.