I need help figuring this out

Should I tell my parents I kissed a boy? I’m 15F he’s 17M and we both don’t want to tell them but I don’t know what’s the best decision. If I tell them they might genuinely be very angry at me… the two people I usually go to for advice aren’t saying anything but “you’re Cooked” and nothing else even when I ask them how to tell my parents they just say that…