I read many times that Herpes or HPV are transmitted by skin to skin contact. What does the latter entail exactly? For example, lets say I engage in intercourse with a woman who has herpes but no sores are present. Now for the intercourse I decided to use a condom also for more protection. Does that mean that in order to get infected in this case, a virus can pass on by a simple touch genital to genital or does virus have to be 'massaged' into the body?