This website contains age-restricted materials including nudity and explicit depictions of sexual activity.
By entering, you affirm that you are at least 18 years of age or the age of majority in the jurisdiction you are accessing the website from and you consent to viewing sexually explicit content.
Its only mansplaining if she already knows what it means. She clearly doesn’t know. That’s just plain explaining.
Plane explaining, isn’t that when you go into depth about 2 dimensional planar topology?
If it’s curved, it’s two dimensional manifoldsplaining