@Hasumi You can do that pretty easily once you get a girlfriend. You can just send her a message through email or some instant messenger program, pretending to be some other guy hitting on her, and see how she responds. You can carry out an extensive multi-year affair if you want, NTRing yourself by pretending to be one (or two, or three, or ten) other person.
Comes with the bonus aspect of your girlfriend never actually cheating because she was actually flirting/cybering with you the whole time.
@Flavory That is actually part of my plan. Each member plays a unique role.
Flavory: The leader
Hasumi: Flavory's sidekick/secretary/mule/whipping boy/sex toy
Terra: Public Relations (tries to convince society that what you all do is a good and beautiful thing)
Bladewing: Battle tactician (for whenever Terra fails to placate those you NTR)
Kona: The reluctant newbie (She will prove that anyone, even the kindest and most noble, can be converted to NTR. While hesitant at first, the day will come where she will regularly NTR at least one person by breakfast.)