Masturbation

So I've only masturbated a handful of times in my life as I am still pretty young (15) but whenever I do it I notice my figures smell afterwards. And like its not a fishy smell but it still makes me kind of insecure about what my boyfriend would say/think about it once we do stuff. Is it normal to have a scent? And like it's not like on the outside or anything it's only after my fingers have gone inside that I find a smell. Is it normal? And if it isn't how do I fix it??