Nice couple and they had a good time. Oral caressing in the 69 position is a real hoot. As for me - it is possible to stop here. You don't have to do sexual acrobatics every time. Quite a normal way for two to enjoy sex. But more often in this option, the first to cum is a woman. So then in any comfortable position, you catch up with yourself. It is best to lie on your side - when you come you can leave your dick in the car and lie there for a while more relaxing and stretching your pleasure of having a woman.
Many women do more than that when they're alone with themselves. But the contrived rules do not allow them to relax with a partner. It is not without reason they say, that a smart woman has it in her head, a fool has it in her mouth. I even know men who categorically reject such liberties.