Which reminds me...a college student and a 14 year old...doesn't that
kinda alarm anyone else?  I'm a college student..you don't see *me*
chasing after 14 year olds..I mean, even if it is destiny, come on..

In the manga (which is where the scenes that suggest they're having sex come
from) he's in high school.  And later on he goes to college in America,
a scene repeated in the anime, so they probably dropped the idea that he was in
college all along.