...I agree she should have mentioned no CIM when you booked the session since that's what you're accustomed to when you see her. If that's a deal breaker for you, that's your choice.

I recall when I had my wisdom teeth extracted, I was strongly instructed to not suck on anything for a few days following the procedure as that could dislodge the needed blood clots forming in the extraction sites and lead to possible infections. So, I was sternly advised no cigarette smoking (I was a smoker at the time), no sucking on straws and definitely no cock sucking! I told 'em the first two might be a little tough to follow but no problem at all on the third.

It's highly unlikely that you would pick up a blood-borne pathogen like HIV or hepatitis B, C from minimal exposure to blood in her mouth but if you feel you should be tested, I can hardly blame you. It's probably time for an updated STD test anyway. Consider if she had active bleeding in her mouth or if there's any reason to suspect she may have HIV or hepatitis. You could ask her and she would probably say no, she doesn't.  

Happy Holidays to you, too, and thanks for the reminder for regular STD screening for sexually active adults!