Be Honest. Do people really think Black girls are promiscuous?

The only stereotype of black girls with which I'm familiar isn't so much that they're promiscuous but rather that they seem to often have children at a young age and it is out of wedlock, i.e. they are often single moms to these children. I'm not saying that this is what I think of because I happen to dig black girls a lot, but I'm just saying that's what many people think about when they think of black girls.