Well, no, given that they're just drawings; but if they were real girls, 
then YES. They are underage. I think that must be part of the obsession so 
many fans have about Rei and Asuka, all that hentai stuff created around 
them, it's honestly disgusting --

-- Because all that lust should properly be directed at MISATO who is the 
utterly hottest babe in all Evangelion, if not all anime!!! But do we get 
megabytes and megabytes of Misato pictures? Noooooo! We get Rei in her 
frickin' bandages! Oh yeah, sex with a scrawny underage catatonic albino 
mummy, that's what turns us on! Or else we can get Asuka Langley Soryu von 
Richtoffen with that puss on her face and the personality of a fire-ant. 
Hell, we get more Kaworu than Misato -- he was in ONE FRICKIN' EPISODE! 

Misato, damn your eyes, Misato! Misatomisatomisatomisato!

---
FRM (Misato!)