I'm going to have to say this again, aren't I? Nero IS Vergil's son. Because he's the yaoi love child of Dante and Vergil! And Vergil is the mom. See, you guys, this is why Dante never gets to top in yaoi fanfics, because he gets his brother pregnant. :O -shot a million times over-
But in all seriousness, he's NOT his son. Not unless Vergil got into Mommy and Daddy's alcohol cabinet when he was twelve and took a spin on the neighborhood bicycle. And the dude that said Nero is Verge's kid needs to go die in a fire.
Also, Dante drinks gin. It says so in the novel. -just got the DMC novel today- Is it just me, or do Tony and Grue have man-crushes on each other? Seriously, all that subtext, it's freaking me out. ._.