You have to realize how dumb this sounds:

My friend (female) was pursued by this 16 boy til she gave in
a 26 yo adult caving in to a 16 yo kid.


It would appear that stat rape is not a possibility as 16 is the age of consent in GA.

(a) A person commits the offense of statutory rape when he or she engages in sexual intercourse with any person under the age of 16 years and not his or her spouse, provided that no conviction shall be had for this offense on the unsupported testimony of the victim.
I don't know if there are any other crimes that may be applicable though.