I have certain questions on oral sex. I'm hesitant to give to my wife because of the smell. She is hesitant to give may be because of the pre cum. My question is it safe? What if my cum gets into her mouth and the vaginal excretion gets into my mouth? Would appreciate your answer. I have read lot of articles that talk about std and things. But as I see people do its all over internet. And as we r married we want to give pleasure to each other.