
Spoilers….
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It’s been a while since I’ve read it. Im pretty sure this is when she puts a Chasity on him and writes derogatory terms on his skin (slut, man whore, etc). She also fingers him and she suggests the idea of pegging him since he came (and enjoyed, duh-) her fingering him.

Since OP got it wrong, what actually happened (since I also read the novel, although you'd probably have already read this part too by now lol) is..
Spoiler, ofc:
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I actually don't remember whether they fucked or not but what happens next is breathing control, where Richard tells Courtney to choke him. Courtney refuses at first but after some convincing from him, she tries it. Hesitantly, she chokes him, and being the pervert that he is, Richard of course enjoys it (too much, even). I don't remember whether she got turned on by this, but yeah Courtney gets worried Richard will die from asphyxiation, but still chokes him again when he asks lol.
As a novel reader… YES YES YES YESSSS