As long as you can see a cock cumming, it's allowed.

Pissed off my girlfriend last night
>Discussed a few weeks ago how I'd like to try things like facials etc
>Says she's down
>Couple of weeks pass
>Having sex
>She says "cum for me" which is usually her code for "I've cum enough so hurry the fuck out"
>Pull out, grab her hair and cum on her face
>Almost exclusively landed in her hair, forehead and eye
>Like a single rope got near her mouth
>"Glad you had a good time but that's not what we talked about!"
>Slams bedroom door and goes for a shower
>Comes back and says she'll try it again but wants more control of the angle
I'll need to take a video for the boys