Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: Not a whole lot of exposition here, I met a girl through tinder, we have been seeing each other casually.

While she is giving me head, I'm looking at her, and I can see her smirk and then purposely drag her front teeth across my dick. I immediately, reflexively pull out which hurts even worse, and as her what the fuck is her problem.

She is taken aback and just says that she was being playful, that shes done it before to other dudes who apparently liked it (i cant see how) and that im making a bigger deal out of it than needed. 

I told her not to assume shit, she says whatever and I left. 

Am I the asshole for yelling or is she the asshole?  

yelling at a girl for using her teeth on purpose during oral sex without my consent