User blog comment:Monkey.D.Me/Whose baby is that?/@comment-109.228.144.117-20110918073253

http://onepiece.wikia.com/wiki/SBS_Volume_63

Well Oda pretty much confirmed now that the baby is indeed Makino's. So Makino is now a sweet cute *cough*MILF*cough* mother everyone.^^ Oda didn't say who is the father though, just that its probably "that person".