Dawn's flaw is that she is a fucking loli.
Look at pic related. She has these things called "titties" and even though her dumb glasses and bad haircut don't do her face any favors, she is hotter than Dawn will ever be. As long as Dawn is a stupid kids she will forever be doomed to be a flat titless worthless girl, a plain loses. Dawn is too flat for Paizuri, and if a girl can't paizuri, se isn't a real girl at all. Without glorious breasts you might as well be making love to a short dickless twink.