
1. You need a male to reproduce, and the other way around. That would mean the girl would have to be a heteroloveual to do so.
2. Or, her level of stupidity is so high she wont even get to have a child.
3. IF she ever has a child, I doubt she can survive labor.
Edit: 4. The child could be female.
5. If the child is male, he would be either heteroloveual, biloveual, or homoloveual in this case.
6. The child dies during labor.
The possibilities are endless.