Isn’t living in contradiction to Divine and Natural Law a sure indication that, in that area of her life, she and her consort lack personal virtue?
They may be to each other good friends and sisters in Christ ---in important areas of life other than the sexual --- but sexually they are misusing a gift given to unite male and female in a lifelong, faithful and fertile Union.
It’s misplacing a sacred faculty outside of its sacred use. They may not realize this --- so many people don't --- but objectively it is not just perversion, but sacrilege.
It's as wrong-headed as contraception, and for the same reason: it's sabotaging the Design.
My beard was 'designed' to keep growing forever; getting longer and longer.
I've modified that design.