[ this isn't the sterile laboratory environment they're both used to, but the pang of nostalgia feels as though it's pulling at his very being as lucilius looks him over just like he used to, centuries upon centuries ago. he's like an insect pinned to a piece of cork, to be studied under a microscope; he's vulnerable and exposed and he's loving every second of it. even though nothing's really changed with the dynamic between them even after all these years, luciliius being the taller one now is a visual reminder of who's in control here; having that cold gaze scrutinize him sends a shiver through his veins, passing through every muscle and bone in his body.

and then lucilius makes that face. the way he's blinking, eyes widening ever so slightly in disbelief, the slight parting of his lips—all of it so utterly adorable and completely unbefitting of a cold-hearted scientist. it's so rare for lucilius to express confusion so clearly—or most emotion beside vague disinterest, really—so these moments are like gold to belial.

he can't help the soft sound of amusement that rises from his chest. ]

I wouldn't dream of doing that to the core you gave me, Cil—sir. [ he corrects himself hastily; he's supposed to be a submissive and obedient beast being put in his place so he'll play the part. now's not the time to break character.

he finally glances down between his legs to get a good look at the organ himself; even in its flaccid state, it's visibly larger with ridges and a thick mass of skin at the base. the color has changed , too, with the markings on his abdomen merging into a solid purple as they reach his cock, fading to a lighter shade at the tip. ]

Calling it a thing is a little harsh, don't you think? [ there's a touch of feigned hurt to his tone. ]