User blog comment:Dmurray1031/Crazy theory about Luffy's Mom./@comment-4522532-20111018005032/@comment-3563898-20111018011750

How would Luffy have known this? He didn't even know who his dad was until Garp told him it was Dragon. Luffy doesn't know anything about his family, so how could he know. It's crazy that Roger's sister is Luffy's mom, but possible.