DISCLAIMER: don't do this shit at home, i don't condone this irl, yadda yadda. it's fiction, keep it fiction.

Mark Heathcliff has a very predictable routine. He wakes up at 7:00 AM every morning, eats breakfast at 7:10 AM, and is out the door by 7:40 AM. At 5:30 PM, he arrives home, and doesn't usually leave the house again until the next morning. Around 10:00 PM, he brushes his teeth, washes his face, changes into sleepwear, says a nightly prayer, and then turns out the light. Around 40 minutes later, he is usually fast asleep, and doesn't so much as stir when an alternate opens his window and slips inside.

The alternate also has a routine. It stares at him for 10 minutes, taking in the gentle rise and fall of his chest, his face softened by sleep. It touches his face to make sure that he is truly unconscious, but he always is. It cradles his cheek in one hand, and savors the feeling of him nuzzling into its touch. Then it crawls onto the bed, propping itself on its hands and knees over his unconscious body, and presses its lips against his in an intimate kiss.

It doesn't have to try very hard to wriggle itself into his mouth, sliding its tongue against his with ease. It lets its spit pool into his mouth, and Mark instinctively swallows it, his body automatically ensuring he won't choke while he slumbers. It's usually a very useful and vital survival mechanism in humans, but it can be taken advantage of very, very easily. It continues pushing its tongue past his lips, letting him swallow its toxin-laced saliva so that he'll stay unconscious as it plays with him in his sleep. Once it believes he's ingested enough of it, it pulls away and licks its lips, relishing the taste of Mark's mouth.

It waits for a few minutes, rather impatiently, before lifting up one of his eyelids. The pupil is dilated, and he doesn't so much as stir. Perfect. It could fuck him for hours and he would sleep through it all, none the wiser of what was happening to him. It knows, because it's done this countless times over the past couple months. It's doing him a favor, really. Mark had always had problems with insomnia, but he's been sleeping through the entire night ever since it started its nightly visits. It's obvious from the way the skin under his eyes no longer looks bruised, how he holds himself a bit more confidently. It would be so fun to watch his sanity unravel if he ever discovered the reason why he was getting more rest.

It ponders what it should do with him tonight, snuggling up next to him to play with his hair as it decides. It could just cuddle and kiss him, or jack him off, or suck his dick, or ride him, or fuck him... No matter what it did, he always made the prettiest noises. Each option has it's own merits, but there's something so special about fucking him... it's so intimate, to be inside him, to defile him from the inside out.

It licks its lips. Fucking him sounds fun tonight.

It makes sure to set a box of tissues nearby, so that it can clean up easily when it's done. Mark would get suspicious if he woke up with his chest covered in cum, his bedsheets soiled with suspicious stains, and something sticky leaking out of his hole in the morning. It was pretty sure he wouldn't be able to do anything about it anyways, but it liked how oblivious he was to its nightly visits, and it wanted to see how long it would take for him to discover what was happening to him. Although, it was getting rather impatient...

It shakes its head, pulling itself out of its musings. It could decide whether or not to reveal itself later, for now it wanted to get on with the show. It crawls down his bed until its head is level with Mark's crotch, sliding his boxers down his hips with deft fingers. It pulls them down his legs, then carefully places them on the ground next to his bed.

It takes his flacid cock into its hand, kissing and licking it until it starts to harden. Mark gives out a muffled, "mmfh," as it wraps its lips around the head of it, taking him into the wet heat of its maw. It bobs its mouth up and down his length, and he gives out breathy moans, barely audible over the sound of it pleasuring him. Soon, Mark's dick is hard and the alternate can taste his precum on its tongue.

It pulls off of his dick with a wet 'pop' and leans back, wiping the drool and precum off its face with a tissue. Mark whines at the loss, weakly bucking his hips into the empty air for friction. It chuckles, then unbuckles its belt and slips its pants down, freeing its dick. It's already hardened to its full size, the entire length of it free from its sheath and undulating slowly. It languidely strokes itself, gathering up the lubricant it produces naturally with one hand.

It lubes up its fingers with its own slick, making sure each one is coated in an adequate amount before slipping one inside Mark's entrance. It soon adds in a second, scissoring him open gently. It needed to prep him thouroughly, otherwise Mark would begin to wonder why he woke up with a sore ass so often. The first time it had done this, it had to take it very slow; he had been a virgin until it began its nightly rituals, after all. It was all worth it though, over a span of weeks that strecthed into months, it had gradually increased the length and girth of its member until he was able to take it at over twice the size it had been when it fucked him for the first time. His body had adjusted to its training so well, loosening so much that it could now slip two fingers into him with ease.

He's come such a long way, just so it could ruin him easier. How considerate. It grins, shaking off the reminiscence and adding a third finger. Once it's satisfied with how loose Mark is, it retracts its fingers, spreads his plush thighs, exposing his entrance, and lines up the tip of its length to his hole.

The alternate pushes in slowly, basking in each little sigh and groan Mark makes as he clenches around it, the noises like music to its ears. It stops to let him adjust each time he lets out a breathy whimper, then continues entering him until it bottoms out inside him. It waits for his face to smooth out as he adjusts to the stretch, then carefully begins to move, its thrusts shallow and slow.

Mark's breathing picks up as it begins to speed up its thrusts, bucking into him with enough force to make the bed frame creak under their weight, but still gentle. Its dick drags against his inner walls, drilling deep into him with a calculated rhythm. Each time it plunges itself into him, he lets out a feeble sound that vaguely reminds it of the bleating of a lamb.

"Ah- mh, Ce... sar... hah-"

It grins, it loves it when he dreams of his little crush during its nightly visits. Hearing the name associated with the face it wears tumble out of his lips with such passion... it makes it feel as though he has already accepted that he belongs to it.

Mark lets out a particularly loud yelp when the alternate angles its thrust just right, which is wrought out into a high, drawn-out moan as it hits that spot repeatedly. His mouth gapes open, allowing the it to hear every precious little sound it rips from his throat. It's like he's singing it a song, it's music to its ears.

"My pretty whore," the alternate murmurs, speaking quietly so it could still hear him sing for it, "I bet if you knew what I was doing to you, you would just open your legs for me. It feels good, doesn't it? I make you feel good."

"Mmh, ahh," Mark gasps out, as if he's agreeing with it.

"I- mmh- I could come in you and leave you covered in your own filth, would you like that?" the alternate growls back at him, nibbling on his earlobe and nuzzling into his neck. "Would you like knowing how much of a whore you are, how good I make you feel?"

"Mhh! Hff, hah," Mark wails weakly, squirming and bucking his hips slightly. It knows from previous experience that he's close to his release, and the alternate quickens its pace to bring him over that edge.

"Good boy, good boy, just a little longer..." it croons into his ear, and Mark pants and moans in response. His face is twisted slightly from the pleasure flooding him, and it reminds the alternate of the way agony and fear distorts the human face in a similar manner. It makes it ponder the words it had just spoken to him a moment prior...

It wonders, what would happen if it came inside him, but didn't clean him up? What would Mark do? Would he brush it off as nothing? Or would he immediately suspect that someone (something) had broken into his home and used him in his sleep? The mental image of him succumbing to panic, unable to sleep, staring into the dark shadows of his bedroom makes it chuckle. It's not like he would be able to actually do anything about it, no gun could kill it, no lock could keep it out. The police wouldn't help him, even if he sobbed and begged and bribed them with all of the money in the world they would never be able (nor willing) to help him. It wasn't worth the risk, after all.

The idea of Mark being so, so pitifully helpless and vulnerable rushes straight to its dick. It was just so cute when humans realized how fragile, how lost they truly were. It tightens its hold on his waist and snaps its hips forwards brutally, snarling, not bothering to be gentle anymore. He would feel this in the morning, he would know. And nobody would come to save him.

Nobody except for me, it thinks to itself, I will save you, I will protect you from my kith, I will make sure no harm befalls you, and you will be mine.

Mark moans and whines underneath him, his face making such beautiful expressions with no restraint whatsoever. Even with his entire body being jerked backwards with each thrust of its hips, he remains asleep, drooling onto his pillow from the pleasure being forced onto him. It's intoxicating, he's so, so perfect, so good at taking what it gives him, like God made him to be ruined by it. It moves a hand to his stomach to hold him down, and reaches for his neglected cock with the other, stroking him in time to its thrusts.

"You, hff, were made for me," it growls, "You belong to me."

It snaps its hips forwards one last time, burying itself deep inside of him as it comes hard. It grinds its hips into him, rubbing its cock against his prostate as it continues to jack him off. Mark mewls as he comes all over his chest, twitching in his sleep as he's fucked through his orgasm. The alternate slows down its pace, rocking into him as he rides out his high. It finally stills, then pulls out of him, watching its seed pour out of his abused hole. It smirks, and uses its thumb to push some of it back in, making sure it'll stay inside. It'll be a nice surprise for him in the morning.

Mark breathes heavily as he comes down from his orgasm, stirring slightly, but eventually his breathing evens and he goes still. He mumbles softly, then settles down into a deep sleep again, as if his body had not just been violated by an unholy disgrace to God's name. The alternate smiles softly at him, kissing his cheek affectionately.

"I love you, Mark," it murmurs with pure adoration. "I'm sure you'll love me too... eventually." Its face splits into a cruel grin, it's not like he would have much of a say in the matter.

The alternate stands up, fixes its suit, and turns to leave. It isn't going to cuddle with Mark tonight, no, it wants him to wake up exactly how it left him; covered in his own cum, with its seed staining his thighs and bedsheets, and his legs spread like a whore. Maybe it will even come back in the morning to try and discreetly witness his reaction. It giggles to itself at the thought of it as it closes the door behind itself.