It's never all about me, but I am happy for it to be all about them
With men, my arousal comes from their arousal, so a guy just sucking me wouldn't deliver much of a hard on
If I was initially on my knees and they were visibly turned on by me sucking them, then my cock does get rock hard
So, for me, the best scenario is it starts with me sucking them but ends with us both pleasing each other