Outside of canon this trope is invoked a lot especially in H-doujins due to a rather persistent tendency for
male writers to be intimidated by the idea of girls who don't find them sexually attractive because they're extremely insecure
manchildren. This is the reason why a disturbingly large number of popular lesbian characters and characters who are popular in part because of their
near lesbian tendencies are depicted in huge amounts of heterosexual porn with a random
male insert or more and very frequently in the form of rape instead of
with each other. Think of it somewhat as the
Distaff Counterpart to
All the Good Men Are Gay except this time, you can get them back on the "home team" so to speak.
