It is very common. Most of the time it is because some asian girls have very tight pussies. Working girls get dry very fast although initially they tend to be wet. I guess it is because they have frequent sex and not horny or they have lost interest. Generally with these girls second time around is better than first time. ST is not enough to develop a chemistry for her to be interested. If the girl is pretty and has a good body it is good to take LT. Ofcourse the benefit is not guaranteed but IMHO the girls tend to relax and have better sex.
Many of these girls the vagina has not been opened fully and for some reason condom break happens. Have not experienced with older girls.