White thick stuff from me??

I notice when I have sex (or don't, but it's noticeable during sex) that there's a whitish, thick, semi gooy stuff from me. I've always guessed it's normal nothing to worry about because it doesn't cause problems. But when I have sex it's always on my boyfriends junk. Kind of embarrassing cuz it's a lot. Sometimes during a shower I'll stick my finger up there to clean it out but I can't really find what it is on the Internet. I'm not worried but if I could change it so there's not as much or it goes away or if anyone has this too?? Just curious.