Reiko is a perfectly normal red-eyed, pointy-eared, sadistic little demon girl.
Characters evolve, relationships develop, and what you think to be true turns out in quite unexpected ways.
Beebo is a cat with facial hair that smokes!
For me, to shoot your sperm in a womans face is not like humiliating her. Every time you are allowed to do it, you should be somehow thankful, because it shows how much she loves you.
It´s like she letting you have your way and that says a lot. It shows trust and love.
After all, sperm is not just some fluid. It contains the essence of life.