I agree, age becomes a BIG factor. I am over 70 and I monger only when I am in China. When I first arrive, and covered, I can last about 10 to 20 minutes after heavy duty foreplay, and a second shot is possible after about 30 minutes to 1 hour recovery. As the duration of my stay increases and the number of girls also increases, I last much longer! The hotter the girl, the shorter the time, but 1 hour and multiple positions is not real unusual. Yes, I use V, but don't need it if I just one shot. With V, it may still be only one shot, but the time is much longer, and if the girl is hot and into it, two pops are not impossible.
It's kind of fun at my age to go for a long time (1 hour +), pop, and have the girl get out of bed to go take a shower, and her legs collapse! You KNOW you've done your duty at that point, and the times she said she came and the times she "really" did are probably true!!!
If I use a condom, which I almost always do, a pop is much more difficult, but the play time is still satisfying. mrclen