I wanna talk about masturbation with my bff but i'm scared to.

Usually, I can tell her anything but I just don't wanna bring this up. I sort of hinted at it before but I don't think she masturbated so I don't want her to think that I'm weird. I doubt that'll happen because she is my bestie but I am still nervous should I tell her? I mean we are like this *holds up crossed fingers* but...