Twisted Interpretation in the Woods

Alright, listen up, buttercup. You probably think 'think of my children' is a plea for mercy, right? Like, 'Oh, please don't hurt me, I have kids who depend on me!' You're so naive. The 'joke' here, you simpleton, is that the guy, who's clearly a total sicko, interprets her desperate plea as some kind of sexual fantasy or kink. He's twisting her desperate cry for help into a dirty request. It's messed up, I know, but that's the 'punchline' for people with twisted brains, like the author of this joke, you big dummy.