Strangeways explains his purpose here.
(Click on the image for larger size.
Invisible Girl, Heroine: Chapter Two, Page Three written and commissioned by Dr. Faustus of EroticMadScience.com and drawn by Lon Ryden is published under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.)
Images of female pleasure are always inspiring, at least to me.
Image source the tumblr Suspect Unknown.