My girlfriend (18) recently started college, she doesn't have a driver's license yet so she relies on me driving her to school. We both decided it would be a good idea that she'd blow me while I drive her to college. This went well for 2 months until today when she suddenly refused to blow me without a reason. Without hesitation, I told her it's fine. I just hope she doesn't refuse to blow me on my 30th birthday coming up next week.