Well I'm a male and I can say that there's nothing wrong with holding down a womans arms and taking charge of your sexual desires on you SO. And as far as the nail thing goes, I also have small scars from my girls scratching habits, but that faded away as our relationship grew, kinda wish it didn't, I still wish she would dig her nails in me as hard as she could and scratch down. So correct me if I'm wrong, but a little domination from either gender is always normal