Every cock is different in terms of the exact type and level of stimulation. I've always cum reasonably fast from blowjobs and usually have to work to not cum too fast. It also depends on the skill of person giving the blowjob. But, for you younger guys, be aware that as guys get older it takes more stimulation to cum, so now (i'm in my mid 50s) it does take longer (not a bad thing at all as it extends the fun part).
The thing I don't often see discussed in these blowjob threads is the importance of the tongue in blowjobs. How the sucker uses his tongue can make all the difference between a boring blowjob and a toe-curling blowjob. I had one lover once who gave fantastic blowjobs that would get me to the edge really really fast fast. I would beg him to pause, and he would look at me and stop for a second and then continue even harder. His technique was putting my cock deep in his mouth and massaging the base of my cock with his tongue. Guys, if you want to improve jour BJ technique focus on using your tongue. My current partner gives great blowjobs too. When sucking my current partner it takes a while to get him to cum and requires me constantly rubbing my tongue at the top of his shaft. It takes quite a bit of focus and if I allow myself to get too into sucking him I sometimes lose focus. Lat night I sucked him for a long long time and I was really LOVING it, as was he. I was able to keep focus on the job and be really excited and hard for the whole thing. When he came I smacked his ass and briefly took his cock out so I could swallow his tasty load. It was pretty fantastic for two older guys who have been together ages. When he was done he asked what he could do for me and I had him straddle my face with his cock in my mouth. I jerked off like that for a while and moved down and started rimming him. I splattered his chest with cum while my tongue was poking and prodding his asshole.
