"J-just be careful, please..."
"Oh come on, how could I, the Warden of Time, not be careful? Besides, you are a little painslut, so not like you wouldn't enjoy it."
Anon, shivering with fear, but also a hit of excitement, lays down on the bed, wearing only his boxers
Kronii immediately pounces on him, sitting down on his lower back, pinning him in place under her stronger body, wearing only her dark laced panties and bra.
Right next to him is a towel, a butterfly knife with handles styled to look like one of Kronii's clock-hand blades when opened, a lighter she used to sterilize said knife, several towels and a plastic sealable bowl of some regenerative cream they got from Fauna
As he hears the knife being picked up and opened, his body shivers again, breathing growing shallower than before, the fact that fabric of her panties doesn't prevent him from feeling the heat and wetness of her pussy and making his underwear tigher and tighter by the second doesn't help him relax at all
Grabbing one of the towels, Kronii places it right in front of anon's head, who takes it and bites down on it, anxiously anticipating when his oshi gets to work

"Well then, lets begin, shall we?", is all the warning he gets, before Kronii lowers herself closer to his shoulder blades, her massive tits just barely touching his back and causing his cock to make his underwear all that tighter

The moment the knife touches and pierces his skin on the left of his back, anon screams a little into the towel, his jaws clamping down on it and eyes tightly shut as the blade is dragged down and blood slowly leaks from the incision
Once satisfied with the length, Kronii quickly leans lower, pressing her tits fully into his back as her tongue start to quickly catch all the blood that spread around his back, the licks and her heavy pendelums cause pain and pleasure mix in his brain and forcing a painful moan from his lips
Upon tasting him, her fangs immediately start to extend out past her lips, more on instinct than actually needing them, and her eye color shifts from the calm azure to a danger-signalling crimson
Once anon's back is cleaned to certain extend, Kronii takes a bit of the healing cream on her left index finger and smears it over the wound, then accelerating the cut forward in time, making it form a nice vertical scar
"Man, Fauna wasn't kidding, that stuff really works like a charm~ What a pretty little scar."
Giving him no time to relax, Kronii makes another cut, this time diagonally to the center of the first one, then bouncing off of it and forming a "K"
Anon sinks his teeth into the towel as hard as he can, eyes welling up with tears, but even then he tries to stay still, to not displease his vampiric time-controlling Mistress, but also to not cause his already painfully erect dick to be stimulated by rubbing it against the bed through the boxers
Kronii makes another vertical cut, cleans the excess blood with her tongue and heals it into a line of scar tissue, but the next one is led from top of the first into a 180 degree turn back, causing her to sink a bit deeper on the turn and making anon let out a yelp even through the towel
"Don't squirm so much, damnit. Crying cause of little cut...what a little bitch you are..."
The words barely register with anon, as he is more focused on the burning on his back, as well as Kronii's panties getting noticably wetter and her nipples starting to poke through the bra into his back, the combination making it hard to focus on anything

Finishing up with another diagonal cut, the Warden finishes carving a "R" into anon's back and moves to the next.

Over the next 30 minutes, the room is filled with sobs and pained moans each time Kronii cuts or licks anon's back, accompanied by pleasured moans each time Kronii's licks up another drop of blood attempting to escape and stain the bed below them, anon's squirming also causing him to rub against her crotch, only adding a fuel to the fire
After completing "O", "N" and both "I"'s, Time Queen's underwear starts to feel like annoying baggage rather than a comfortable clothing, so she uses the knife to quickly cut the straps and tosses it forward, making sure that anon sees them and realizes she now sitting on top of him naked, even if he is bit out of it from the pain
He indeed does, causing him to let out another pained moan, his underwear painfully stretched and annoying hiderance also
Before he can properly register it, his boxers are also slashed and pulled off, ending up next to Kronii's, making a sigh of relieve escape his lips
Doesn't take long till Kronii is finished, having enjoyed both the impromtu meal and the marking of her boytoy. She leans up to admire her handiwork, an expertly created "Kronii's" now decorating anon's skin, who the mix pain and pleasure turned into a panting mess, the sheet on the mastress stained with his precum where the tip was pressed against it

Well then, you held a lot better than I expected. I think reward is in order for not chickening out."

"H-huh?"
With a quick move, Kronii moves from his back to the other side of bed, sitting down and spreading her legs wide open.
When anon manages to lift himself up and turn around on his weakened limbs, the sight of naked Kronii, her legs far apart, panting and her cunt, bush and thighs visibly wet with her juices almost knocks him out entirely, his cock twitching like crazy as he looks stunned into her dark red eyes, sensing lust and need radiating from them rather than the usual hunger for blood
"Get here now...ah...I fucking need this...and you do too..."
With sudden jolt of energy, Anon pounces on the inviting Warden of time, not even getting a chance to try to enter her as Kronii reaches out and grabs his dick, guiding it to her completely soaked entrance, all the natural lube causing anon to slip almost balls deep inside in single thrust
"Now do me, you idiot. Fuck me like its the last thing you do in your life..."
After recovering from the shock of her wet, incredibly warm cunt enveloping his cock, anon does as told and start to thrust forward with every fiber of his body and all the energy left in him.
Afterwards, while they are both fucking like animals in heat, sounds of slapping and moaning filling the room, Kronii grabs anon's chin and makes him kiss her, their tongue dancing around each other as they both moan out "I love you!" and "Harder!" over and over and anon's tongue teasingly licks over Kronii's still extended fangs.
Kronii's hands reach to his back, tracing over her mark while his hands take a hold of her massive breasts and squeeze them over and over, both's awareness of the world only extending to each other, until their bodies reach their limits.
With a final balls-deep thrust, anon rams himself as deep into Kronii as he possibly can, breaking the kiss as his back arches and his mouth lets out a loud, long groan of pleasure and release, Kronii below locked in the same orgasmic extasy and bliss, as her pussy is filled to the brim with his cum.
Once the pleasure stops controlling both of their muscles, the collapse onto each other, panting heavily and unable to move properly, Kronii's eyes returning to the calm blue as she looks at her lover and pulls him into a hug, his cock still inside her
None of them speak a word, the grasp of sleep slowly taking them over as they melt into each other's embrace in the afterglow