I had unprotected sex with a girl using only manual stimulation - my hand on her vulva and finger inside, and her hand on my penis. We also kissed (a lot, and deeply). She had no noticeable outbreak and before I stimulated her, and I didn't know she had herpes while kissing and stimulation. I have no cuts on my hand, but noticed this morning a tiny hang nail (which I made worse by pulling on it this morning). I've scheduled myself for a test at Planned Parenthood. I feel terrible as I really like this person, but I can't continue a relationship that doesn't allow for free sexual expression.
What are the chances of Herpes transmission through this kind of manual stimulation?