I'm bumping an old thread here but maybe my reply will inspire some of you. I'm 40 and have been with a lot of girls in all parts of the world.
I can say this, how long I last during sex depends on 1/ how turned on I am with the girl, 2/ how long I have been without sex and 3/ how long since I last cum.
I travel to Asia on business and I prefer to go without cumming for at least one week. When there I then visit bars and pick up the sexiest girl I can find and take her to my hotel. She does not have to be the best looking in the bar, but one I feel the most chemistry with. Some of my most passionate sex was with girls that other guys would rate average in the 5-6. Some of my worst sex was with dancers that would rate 8-9 -no chemistry. Anyway, an average looking girl can be extremely sexy if she acts and dresses the right way. To give you an idea, a girl I picked up recently in Kuala Lumpur was a Vietnamese escort, young and simple. Her body was slender and toned all over, face was ok. Probably a 7 overall. Chemistry was good. We got to my hotel and wow did I like her. I haven't cum for a week and was horny as hell, and soon thrust it in her from top. I was pumping her for a few minutes on the bed, going in deep and I swear I came close to blowing my load at least 3 times. But I said to myself, there's no fucking way I'm gonna cum, no matter what happens. So I held back. Its very difficult even with my 25 years of edging practice. You must pull out and breathe a lot if you feel like you gonna cum. This works for me. Anyway I pumped her for a good 20-30 min and then we rolled over to sleep. I felt satisfied and full of energy from this girl, and told myself I'll finish off in the morning. So I wake up and turn over and she's all naked sleeping. The sight of her super fit body was too much for me. I felt my cock swell like a zeppelin airship, ball milk churning in my sack wanting to spurt. I had to have her like that right there. So I got on top and thrust my cock in and oh god her pussy felt so good and tight. Problem was, it felt too good and I was already on the edge even before my dick went in her. So after just two or three thrusts I felt it coming and could not hold back no more. Two more thrusts in that pussy and I pulled out moaning and exploded like a geyser of ropes rope all over her abs, tits and face. She needed a towel to wipe herself down. Anyway, the point is, I'd rather have sex where there's so much passion I cum hard and fast then sex where you're for hours pretending and trying to finish off. Leghunter out.