Should I be able to stay at my boyfriend's house, even though I'm 13 years old?

Well, before you start saying 'No, that's WAY too young to be alone with a boy for a whole night!' sort of thing, I need to tell you that we are not like most thirteen year old idiots. We're very aware that we are definitely not having sex, & that we are too young. We're waiting until we're older. But the problem is, I wanted to stay at his house for the night. I'm pretty sure his parents would allow it, but if I asked mine, they would say no right away. It's not fair. They have no idea how we converse to each other & how we act. I don't think they understand that age is just a number, and being 13 doesn't mean we're just horny kids who are just thinking about sexual activities. No, that's not the case at all. How do you think I can convince them otherwise? I've already told them we're not going to do anything like that. We're not dumb, like most people our age.