Depends - I remember seeing Lust For A Vampire when I was sixteen, with Yutte Stensgaard from The GoldenShot (ask your parents!) and it was the first time I ever saw a woman have her nipples kissed on screen. It gave me dreams for weeks - none of them frightening!
My first sexual stirrings were caused by Christopher Lee in the old Hammer House of Horror films.I so wanted to be sucked dry by his sexy looking fangs!!!
20 odd years later,it still does it for me,but I always was strange!!!