Since you "just know", then that means EVERYTHING!!!! Facts don't matter, because love conquers all. Go for it, bro! lol.
You can spare yourself the degrading task of washing away one another's post-coital body fluids,
You wash afterwards? I just peel it off when it dries.
I have a long time interest in psychology, specializing in relationship dynamics for 30 years.
(Please note, we give the best advice we can based on the information given in a post. For better advice, please include the age of all romantic partners.)