The
Spy Theory, if you will, is plausible for many reasons, and is strongly implied, either as foreshadowing or as a
red herring (see what I did there?). MC is developing a world-shaking new technology at a famous university. A beautiful foreigner, who shares the field of study, is daughter of a diplomat, and claims to be German with a Russian name (and mother), moves right next door to his best friends, and instead of getting pissed off about Cooper's creeping, befriends him and expresses interest in the MC. In a movie or TV show that would be proof of spying, but this is an AVN, and borderline normal.