Can a girl orgasm from just getting kissed, or rather scraping your teeth on her neck?

Maybe she won't orgasm but it definitely turned my girlfriend on. I was making out with her and then i started kissing her neck, then i was scraping my teeth and she sort of writhed. I kept doing it more and harder, deeper in her skin, and she started to grasp me pull me really close to her body and let out gasps, i don't think she climaxed because i lost that sweet spot. I have no idea how or why this got her off but i was wondering if anyone out there had some kind of explanation.