Lack of proper sex education... irresponsible family..otherwise they would have not allowed this to happen..
The child’s future is not at all safe in the hands of a 13 and 15 yr old!
They should first know how to take care of themselves then they can take care of he baby...otherwise the child end up doing the same as soon as she is physically able for that! Geez where is this world heading to??
DNA test is good..to clear the confusion..lol