时间太长。

一般7分钟，统计结果，不信可以去查。

20 分钟以上射精困难。或者至少是太超过常人。如果楼主不享受这么长时间，而你男友非这么长时间不可，可以考虑换人了

During sexual intercourse, most men ejaculate between 5-10 minutes and research has shown the average time to ejaculate after penetration is 5 1/2 minutes. Usually, ejaculation less than 1 to 1 1/2 minutes after penetration is regarded as premature ejaculation.