To her credit, she does wonder what the hell she's doing. No rational human being in her situation would be about to fuck a complete stranger in a dusty cabin in some kind of wooded nightmare hellscape. But what she does know is if she doesn't distract herself somehow she's gonna lose it completely and she's just so tired of losing it.

So instead of screaming at the top of her lungs and not ever stopping, she keeps kissing him. He's warm and solid and he feels real. More real than anything else going on.