Have you ever cummed on partners face?

[Kalponik]

That is a great achievement, few women dont like to swallow the cum, for them it is not ok, but makign a women swallow the cum is an achievememnt for men and it shows that the women compleatly accepted that man.
         So you did the right thing by accidentlaly exploded in her mouth so that she dont have any other option than swallowing your sperm and accept you compleatly without any conditions.

You are right, If a man can licking pussy of her partner then   she also should accept his dick on her mouth