‘Okay then.’ I rise and turn her around to face Ethan. ‘Show me how nicely you can take him out, and then you can show him what a lucky fucker I am to have this mouth whenever I want it.’ The key with Marlowe is to keep her on that knife edge of praise and something darker. What she responds to, I’ve found, is that very particular combination of praise and filth and dominance.

I lean in to whisper in her ear.

‘Don’t you want him to know why I pay you and no one else to get on your knees and use that sweet little mouth? Men would do a lot of very bad things for that mouth of yours, love. So get down there and let him slide his cock past your lips and see for himself. He’s ready to blow, I know it. He needs to use you for a few minutes like the lovely little fuck doll you are.’

I’m getting more and more turned on with each word. They seem to do the trick for Marlowe too, because she gets slowly to her knees between Ethan’s legs and, with a shy glance up at me to check she’s doing it right, reaches for his fly. He lets out a grunt of what sounds like agonised pleasure and shifts his arse forward so he’s reclining further, giving her more access.

I’d like to say for the record that I have no interest in dick whatsoever. None of this is an effort to see Kingsley get his cock out. Christ, no. But, like I said, I do get off on watching something as taboo as people fucking up close, and I particularly enjoy being able to watch a man take Marlowe for a ride.

He’s felt her cunt; he’s felt how tight she is and is presumably all too aware of how snugly she’ll fit around a dick; he’s seen how sexy she is when she abandons her self-consciousness enough to come; and now he gets to feel her mouth on him and know, even while he’s drowning in the sensation, that it’s a one-off.

And when I bury myself balls-deep in her, he’ll feel every single thrust as the back of her throat hits his dick.

He owes me a very nice bottle of whisky for this.

Marlowe makes quick work of his belt buckle and zip before pulling down his boxer briefs. I’m intensely annoyed that he doesn’t have the pencil pecker I was hoping for and instead looks not much smaller than me.

‘Don’t come in her mouth,’ I order him.

‘I plan on coming on her tits,’ he tells me with a churlish glance up at me. He interlaces his hands behind his head. ‘Go on. Suck it. Show me what all the fuss is about.’