You say that this guy is not pressuring you for sex, but do doubt it is on his mind. Sooner or later the longer it goes and the more pent up and frustrated he gets...something is going to break. He will probably takeoff and find someone who will be willing...most likely another 16 yr old or even younger....
He most likely will end up having to register with the county he lives in....Can anyone say lvl 3?
Tryin not to be negative, but I am the same age as he is and I would never do anything with someone so young or even think about it, he has some issue where he can't hookup with someone his own age so he probably finds it easier to seduce younger women. For some men the allure of a younger woman I guess is a real turn on.
I would keep my distance and try to find someone roughly your own age. Because most likely this is going to turn into a huge problem down the stretch.
"An intelligent man is sometimes forced to be drunk to spend time with his fools." --- Ernest Hemingway