I am the same...I hate it though...I don't see it as a good thing for me to climax quickly but be able to keep climaxing. I mean multiple orgasms is great but sometimes I just want to take my time and enjoy sex with my husband without climaxing straight away because then I have to keep trying to climax. And the first one is always so good and the rest are just...meh.
I probably don't even make sense but anyway.
Don't complain. You both are very lucky!
Its rare but there are women like this . I have had a few just like that in my life. LOL Be happy its easy to please them ! and yes not many of us men have mulitiple orgasms !
take care Jim