Demon attacks are rare.
Of course, a single traveler or a small group of them is so fantastically unsafe from such that no one in their right mind would do that in the first place, but large caravans are usually perfectly safe.
He reluctantly pulls out. "I should--go, for now. Whatever I end up doing it won't be made easier if anyone else thinks I'm acting weird."
He kisses her and leaves.
It takes several minutes for another demon to come in and start raping her.
The lung trick is still good even without anyone fucking her anywhere else.
She loves it. Although it might be harder to tell how into it she is when she's doubled over coughing and gagging.
And now she is coughing and gagging and sobbing and pressing forward into his hand.