One of the girls I knew would basically deepthroat my dick while I came, so there was no cum in the mouth.
One time we were in an awkward position and she couldn't get my dick down her throat in time. It ended up being quite the mess. She was a champ about it, but later mentioned she'd rather that not happen again.
That's when I would dump her.
On the other hand what would she do if you did it again? Would she dump you? So what? What if you told her that was a deal-breaker?
I want to hear Gia's opinion on this.