If you like that, you'd get a real kick out of what else I can do. [ The monster holding his companion at bay with little but a clutch of his hand studies Charlie; interest razor-sharp in how his captive struggles with being pinned in place. As J watches, a clash of contradictory emotions unfolds directly in front of his eyes, ringing clear as day with every tight clench of the wiry man's jaw or anxious flick of a swollen tongue drawn over teeth. There's a sense of satisfaction in making Charlie squirm, leaving him torn between conflicting desires, but even better is the moment when J can supply the one thing the vampire is craving: himself. ] Things you can't even begin to imagine.

I could spread myself open for you and take it deep inside, right here. [ The grip that had previously acted as a restraint finally relents. In exchange for losing his hold on the vampire's neck, J gathers up a hand that had left a bloody tableau splattered across the canvas of his body. Sliding it even lower, the demon paints a lurid picture with Charlie's blood-soaked fingers as J guides them to brush not over the heat building in his swimsuit but the naked skin just above. ]

Make it hot and wet enough to out-do this little spectacle tenfold. All I'd need are my fingers and this. [ Emphasis lands in time with a deliciously wet glide over Charlie's length, pumping fast and hard as his hand dedicates itself to ushering the vampire closer to that blissful peak of pleasure.

The description is vague enough to land as something abstract, not the grotesque mental imagery conveyed by an honest depiction, full of exposed viscera and ripped-open flesh. The more palatable approach is an intentional one. He's yet to suss out Charlie's limitations and has gleaned few preferences aside from the spillage of blood. 

Gut-fucking is on an entirely different level than that. ]