Hello, I got married in april 2014 and i am having unprotected sex with my wife from first night and have no problem. My wife was completely virgin before the marrige. She was completely unaware of sexual activities before marrige. We both have good sex life till now. yesterday, I licked her vagina first time as i was so exited. Now, i am concerned that i could have catch any std. my wife does not have any kind of vaginal symptoms like pain, itching, burning, bumps etc. I wanted to know that are there any std that can spread by mouth or oral but not by sex. I love my wife a lot.